chore(native): Add snippets to strip sensitive data with set_tag and …

…set_user (#9826)

* adds sensitive data snippets for native

* adds sensitive data snippets for native

platform-includes/sensitive-data/set-tag/native.mdx

@@ -0,0 +1,7 @@
+The Native SDK maintains all data in a single global scope.
+
+```c
+#include <sentry.h>
+
+sentry_set_tag("birthday", checksum_or_hash("08/12/1990"));
+```

platform-includes/sensitive-data/set-user/native.mdx

@@ -0,0 +1,11 @@
+The Native SDK maintains all data in a single global scope.
+
+```c
+#include <sentry.h>
+
+sentry_value_t user = sentry_value_new_object();
+sentry_value_set_by_key(user, "id", sentry_value_new_int32(client_user->id));
+// OR
+sentry_value_set_by_key(user, "username", sentry_value_new_string(client_user->username));
+sentry_set_user(user);
+```