config: add x11proto dependency for libxau and SDDM

- Add x11proto to redbear-full.toml package list
- libxau recipe updated with x11proto dependency and custom build script
- Fixes libxau build failure: 'Package xproto was not found'

local/recipes/tui/mc/source/misc/syntax/diff.syntax

@@ -0,0 +1,32 @@
+# Highlighting for various diffs including those generated by CVS
+
+context default yellow
+    keyword linestart @@*@@ cyan
+    keyword linestart Index:\s brown
+    keyword linestart \s black white
+    keyword linestart \*\*\*\*\*\*\*\*\*\*\*\*\*\*\* cyan
+    keyword linestart \*\*\**\*\*\*\* cyan
+    keyword linestart ---*---- cyan
+context exclusive linestart @@*@@ \n brightcyan
+context exclusive linestart Index:\s \n black white
+context exclusive linestart \s \n lightgray
+context exclusive linestart \t \n lightgray
+context linestart diff \n white red
+context linestart ---\s \n brightmagenta
+context linestart \+\+\+\s \n brightmagenta
+context linestart \*\*\*\s \n brightmagenta
+context linestart === \n brown
+context linestart \+ \n brightgreen
+context linestart > \n brightgreen
+context linestart - \n brightred
+context linestart < \n brightred
+context linestart ! \n yellow
+context linestart ? \n brown
+context linestart RCS\s \n brown
+context linestart retrieving\s \n brown
+context linestart Only\s \n yellow black
+context linestart Common\s \n yellow black
+context linestart File\s \n yellow black
+context linestart Files\s \n yellow black
+context linestart Binary\s \n yellow black
+context linestart # \n brightcyan