Ensure a consistent line-endings policy

I just went to change one line in a file, then found out the whole file
changed since it was committed differently to my local system, and we
don't do normalisation yet. This fixes that.

Here we add a .gitattributes file at the top level with the policy
`* text=auto` which roughly translates as files that git considers
"text" are stored internally in history as LF and checked out according
to local user preference (which might be CRLF on a certain person's
Win32 box, for example).

In addition to the new .gitattributes, files that had CRLF line-endings
in the history have been renormalized with `git add --renormalize .`.

This should make cross-platform development easier while respecting
local configs.

When in Rome...

.gitattributes

@@ -0,0 +1 @@
+* text=auto

source/adapters/level_zero/ur_level_zero.cpp

@@ -1,18 +1,18 @@
-//===--------- ur_level_zero.cpp - Level Zero Adapter ---------------------===//
-//
-// Copyright (C) 2023 Intel Corporation
-//
-// Part of the Unified-Runtime Project, under the Apache License v2.0 with LLVM
-// Exceptions. See LICENSE.TXT
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include <algorithm>
-#include <climits>
-#include <string.h>
-
-#include "ur_level_zero.hpp"
-
-// Define the static class field
-std::mutex ZeCall::GlobalLock;
+//===--------- ur_level_zero.cpp - Level Zero Adapter ---------------------===//
+//
+// Copyright (C) 2023 Intel Corporation
+//
+// Part of the Unified-Runtime Project, under the Apache License v2.0 with LLVM
+// Exceptions. See LICENSE.TXT
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <algorithm>
+#include <climits>
+#include <string.h>
+
+#include "ur_level_zero.hpp"
+
+// Define the static class field
+std::mutex ZeCall::GlobalLock;

source/adapters/level_zero/ur_level_zero.hpp

@@ -1,38 +1,38 @@
-//===--------- ur_level_zero.hpp - Level Zero Adapter ---------------------===//
-//
-// Copyright (C) 2023 Intel Corporation
-//
-// Part of the Unified-Runtime Project, under the Apache License v2.0 with LLVM
-// Exceptions. See LICENSE.TXT
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-#pragma once
-
-#include <cassert>
-#include <cinttypes>
-#include <list>
-#include <map>
-#include <stdarg.h>
-#include <string>
-#include <unordered_map>
-#include <vector>
-
-#include <ur/ur.hpp>
-#include <ur_api.h>
-#include <ze_api.h>
-#include <zes_api.h>
-
-#include "common.hpp"
-#include "context.hpp"
-#include "device.hpp"
-#include "event.hpp"
-#include "image.hpp"
-#include "kernel.hpp"
-#include "memory.hpp"
-#include "physical_mem.hpp"
-#include "platform.hpp"
-#include "program.hpp"
-#include "queue.hpp"
-#include "sampler.hpp"
-#include "usm.hpp"
+//===--------- ur_level_zero.hpp - Level Zero Adapter ---------------------===//
+//
+// Copyright (C) 2023 Intel Corporation
+//
+// Part of the Unified-Runtime Project, under the Apache License v2.0 with LLVM
+// Exceptions. See LICENSE.TXT
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+#pragma once
+
+#include <cassert>
+#include <cinttypes>
+#include <list>
+#include <map>
+#include <stdarg.h>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include <ur/ur.hpp>
+#include <ur_api.h>
+#include <ze_api.h>
+#include <zes_api.h>
+
+#include "common.hpp"
+#include "context.hpp"
+#include "device.hpp"
+#include "event.hpp"
+#include "image.hpp"
+#include "kernel.hpp"
+#include "memory.hpp"
+#include "physical_mem.hpp"
+#include "platform.hpp"
+#include "program.hpp"
+#include "queue.hpp"
+#include "sampler.hpp"
+#include "usm.hpp"

source/ur/ur.cpp

@@ -1,24 +1,24 @@
-
-//===--------- ur.cpp - Unified Runtime  ----------------------------------===//
-//
-// Copyright (C) 2023 Intel Corporation
-//
-// Part of the Unified-Runtime Project, under the Apache License v2.0 with LLVM
-// Exceptions. See LICENSE.TXT
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "ur.hpp"
-#include <cassert>
-
-// Controls tracing UR calls from within the UR itself.
-bool PrintTrace = [] {
-  const char *PiRet = std::getenv("SYCL_PI_TRACE");
-  const char *Trace = PiRet ? PiRet : nullptr;
-  const int TraceValue = Trace ? std::stoi(Trace) : 0;
-  if (TraceValue == -1 || TraceValue == 2) { // Means print all traces
-    return true;
-  }
-  return false;
-}();
+
+//===--------- ur.cpp - Unified Runtime  ----------------------------------===//
+//
+// Copyright (C) 2023 Intel Corporation
+//
+// Part of the Unified-Runtime Project, under the Apache License v2.0 with LLVM
+// Exceptions. See LICENSE.TXT
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "ur.hpp"
+#include <cassert>
+
+// Controls tracing UR calls from within the UR itself.
+bool PrintTrace = [] {
+  const char *PiRet = std::getenv("SYCL_PI_TRACE");
+  const char *Trace = PiRet ? PiRet : nullptr;
+  const int TraceValue = Trace ? std::stoi(Trace) : 0;
+  if (TraceValue == -1 || TraceValue == 2) { // Means print all traces
+    return true;
+  }
+  return false;
+}();