more windows fixes + bring back windows ci

vlib/os/const_windows.v

@@ -2,7 +2,7 @@ module os
 
 // Ref - winnt.h
 const (
-	SUCCESS = 0 // ERROR_SUCCESS
+	success = 0 // ERROR_SUCCESS
 	ERROR_INSUFFICIENT_BUFFER = 130
 )
 
@@ -77,7 +77,7 @@ const (
     ENABLE_INSERT_MODE                 = 0x0020
     ENABLE_LINE_INPUT                  = 0x0002
     ENABLE_MOUSE_INPUT                 = 0x0010
-    ENABLE_PROCESSED_INPUT             = 0x0001	
+    ENABLE_PROCESSED_INPUT             = 0x0001
     ENABLE_QUICK_EDIT_MODE             = 0x0040
     ENABLE_WINDOW_INPUT                = 0x0008
     ENABLE_VIRTUAL_TERMINAL_INPUT      = 0x0200

vlib/os/os_windows.v

@@ -198,14 +198,13 @@ pub fn get_file_handle(path string) HANDLE {
 // get_module_filename retrieves the fully qualified path for the file that contains the specified module.
 // The module must have been loaded by the current process.
 pub fn get_module_filename(handle HANDLE) ?string {
-	success := C.SUCCESS
 	unsafe {
 		mut sz := 4096 // Optimized length
 		mut buf := &u16(malloc(4096))
 		for {
 			status := int(C.GetModuleFileNameW(handle, voidptr(&buf), sz))
 			match status {
-				success {
+				os.success {
 					_filename := string_from_wide2(buf, sz)
 					return _filename
 				}