patch 8.0.0146: termguicolors uses wrong colors on MS-Windows with ConEmu

Problem:    When using 'termguicolors' on MS-Windows the RGB definition causes
            the colors to be wrong.
Solution:   Undefined RGB and use our own. (Gabriel Barta)
diff --git a/src/version.c b/src/version.c
index c3c33dc..775f7df 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    146,
+/**/
     145,
 /**/
     144,