replace cgilite submodule with subtree

[confetti] / cgilite

diff --git a/cgilite b/cgilite
deleted file mode 160000 (submodule)
index 506e2f9..0000000
--- a/cgilite
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 506e2f9f146c13919e65a9bbbd844391b96bbe9d