Adding support to apple-m1 architecture

[doronaviguy]

This PR includes the following

1. detecting arm based apple devices and passing the right value to clang complier
2. in case of ARM processor we are declaring the cpp version to be 14 set(CMAKE_CXX_STANDARD 14)
3. changing the clang flag from march to mcpu and pass the right flag based on the system architecture, in case of an apple arm based processor we are passing -mcpu=apple-m1

Tested on apple both arm and non arm cpus

[awesome-doge]

Everything unrelated to rocksdb will pass the test, including

• test-cells
• test-ed25519
• test-fec
• test-hello-world
• test-http
• test-net
• test-tdactor
• test-tdutils
• adnl/adnl-proxy
• blockchain-explorer/blockchain-explorer

Anything that has dependencies on rocksdb cannot be compiled.
will get the following error. This also needs the adjustment of rocksdb.

FAILED: third-party/rocksdb/CMakeFiles/rocksdb.dir/db/arena_wrapped_db_iter.cc.o 
/Library/Developer/CommandLineTools/usr/bin/c++ -DIOS_CROSS_COMPILE -DNDEBUG -DOS_MACOSX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_LITE -DROCKSDB_NO_DYNAMIC_EXTENSION -DROCKSDB_PLATFORM_POSIX -I/Users/awesome-doge/ton/third-party/rocksdb -I/Users/awesome-doge/ton/third-party/rocksdb/include -isystem /Users/awesome-doge/ton/third-party/rocksdb/third-party/gtest-1.8.1/fused-src -W -Wextra -Wall -Wsign-compare -Wshadow -Wno-unused-parameter -Wno-unused-variable -Woverloaded-virtual -Wnon-virtual-dtor -Wno-missing-field-initializers -Wno-strict-aliasing -std=c++11 -march=native -g -DROCKSDB_USE_RTTI -arch arm64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk -fPIC -std=gnu++14 -MD -MT third-party/rocksdb/CMakeFiles/rocksdb.dir/db/arena_wrapped_db_iter.cc.o -MF third-party/rocksdb/CMakeFiles/rocksdb.dir/db/arena_wrapped_db_iter.cc.o.d -o third-party/rocksdb/CMakeFiles/rocksdb.dir/db/arena_wrapped_db_iter.cc.o -c /Users/awesome-doge/ton/third-party/rocksdb/db/arena_wrapped_db_iter.cc
clang: error: the clang compiler does not support '-march=native'
[12/245] Building CXX object third-party/rocksdb/CMakeFiles/rocksdb.dir/db/compacted_db_impl.cc.o
FAILED: third-party/rocksdb/CMakeFiles/rocksdb.dir/db/compacted_db_impl.cc.o 
/Library/Developer/CommandLineTools/usr/bin/c++ -DIOS_CROSS_COMPILE -DNDEBUG -DOS_MACOSX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_LITE -DROCKSDB_NO_DYNAMIC_EXTENSION -DROCKSDB_PLATFORM_POSIX -I/Users/awesome-doge/ton/third-party/rocksdb -I/Users/awesome-doge/ton/third-party/rocksdb/include -isystem /Users/awesome-doge/ton/third-party/rocksdb/third-party/gtest-1.8.1/fused-src -W -Wextra -Wall -Wsign-compare -Wshadow -Wno-unused-parameter -Wno-unused-variable -Woverloaded-virtual -Wnon-virtual-dtor -Wno-missing-field-initializers -Wno-strict-aliasing -std=c++11 -march=native -g -DROCKSDB_USE_RTTI -arch arm64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk -fPIC -std=gnu++14 -MD -MT third-party/rocksdb/CMakeFiles/rocksdb.dir/db/compacted_db_impl.cc.o -MF third-party/rocksdb/CMakeFiles/rocksdb.dir/db/compacted_db_impl.cc.o.d -o third-party/rocksdb/CMakeFiles/rocksdb.dir/db/compacted_db_impl.cc.o -c /Users/awesome-doge/ton/third-party/rocksdb/db/compacted_db_impl.cc
clang: error: the clang compiler does not support '-march=native'
ninja: build stopped: subcommand failed.