Support of clangd for the project

misc/build.bat

@@ -33,6 +33,11 @@ if /i "%~1"=="gen_vs" (
     set GEN_VS_PLAN=%~2
     goto do_compile_build_tool
 )
+if /i "%~1"=="gen_compile_commands" (
+    set COMMAND_GEN_COMPILE_COMMANDS=1
+    set GEN_COMPILE_COMMANDS_PLAN=%~2
+    goto do_compile_build_tool
+)
 if /i "%~1"=="clean" (
     echo [BUILD] Cleaning output directories...
     if exist Intermediate rmdir /s /q Intermediate
@@ -118,6 +123,12 @@ if "!COMMAND_GEN_VS!"=="1" (
     exit /b !ERRORLEVEL!
 )
 
+if "!COMMAND_GEN_COMPILE_COMMANDS!"=="1" (
+    echo [BUILD] Generating compile_commands.json...
+    "%BUILD_TOOL%" gen_compile_commands "!GEN_COMPILE_COMMANDS_PLAN!"
+    exit /b !ERRORLEVEL!
+)
+
 echo [BUILD] Generating Build Plan...
 set PLAN_FILE=Intermediate\build_plan.txt
 if exist "!PLAN_FILE!" del /f /q "!PLAN_FILE!"