new .d file parser for C compilation

- wip for #2046
- clang .d output must be created with `clang -MV` switch
- implemented in Zig
- hybridized for zig stage0 and stage1
- zig test src-self-hosted/dep_tokenizer.zig

Author: mikdusan

CMakeLists.txt

@@ -6726,6 +6726,7 @@ add_custom_command(
         "-Doutput-dir=${CMAKE_BINARY_DIR}"
     WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
     DEPENDS
+        "${CMAKE_SOURCE_DIR}/src-self-hosted/dep_tokenizer.zig"
         "${CMAKE_SOURCE_DIR}/src-self-hosted/stage1.zig"
         "${CMAKE_SOURCE_DIR}/src-self-hosted/translate_c.zig"
         "${CMAKE_SOURCE_DIR}/build.zig"