MDEV-26527 speedup appveyor build

Introduce -DFAST_BUILD parameter for a little faster build or test

if set,
- do not compile with /d2OptimizeHugeFunctions, this makes compilation
of bison output much slower on optimized build
- do not use runtime checks on debug build (RTC1). This slows down tests
considerably

cmake/os/Windows.cmake

@@ -116,7 +116,7 @@ ENDMACRO()
 
 IF(MSVC)
   IF(MSVC_VERSION LESS 1920)
-    MESSAGE(FATAL_ERROR "Visual Studio q2019 or later is required")
+    MESSAGE(FATAL_ERROR "Visual Studio 2019 or later is required")
   ENDIF()
   # Disable mingw based pkg-config found in Strawberry perl
   SET(PKG_CONFIG_EXECUTABLE 0 CACHE INTERNAL "")
@@ -254,12 +254,12 @@ IF(MSVC)
       ENDFOREACH()
     ENDFOREACH()
   ENDIF()
-  IF(MSVC_VERSION LESS 1910)
-    # Noisy warning C4800: 'type': forcing value to bool 'true' or 'false' (performance warning),
-    # removed in VS2017
-    STRING(APPEND CMAKE_CXX_FLAGS " /wd4800")
+
+  IF(FAST_BUILD)
+    STRING (REGEX REPLACE "/RTC(su|[1su])" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
   ELSEIF (NOT CLANG_CL)
-    STRING(APPEND CMAKE_CXX_FLAGS " /d2OptimizeHugeFunctions")
+    STRING(APPEND CMAKE_CXX_FLAGS_RELEASE " /d2OptimizeHugeFunctions")
+    STRING(APPEND CMAKE_CXX_FLAGS_RELWITHDEBINFO " /d2OptimizeHugeFunctions")
   ENDIF()
 ENDIF()