Color in the console

Allow each gui_print command to specify a color
Change LOGERR to use the error color
Theme should specify colors for error, warning, and highlight

Change-Id: Ie8ece34111f604e25fcb79e5b731cd4e61038ff9
diff --git a/twcommon.h b/twcommon.h
index 69cc7e6..d54446f 100644
--- a/twcommon.h
+++ b/twcommon.h
@@ -7,7 +7,7 @@
 
 #ifndef BUILD_TWRPTAR_MAIN
 #include "gui/gui.h"
-#define LOGERR(...) gui_print("E:" __VA_ARGS__)
+#define LOGERR(...) gui_print_color("error", "E:" __VA_ARGS__)
 #define LOGINFO(...) fprintf(stdout, "I:" __VA_ARGS__)
 #else
 #define LOGERR(...) printf("E:" __VA_ARGS__)