Add cabal support (#8)

* Add cabal support

* Remove nanovg commit reference (use Hackage version). Remove freeze file

Co-authored-by: Francisco Vallarino <fjvallarino@gmail.com>

.gitignore

@@ -1,6 +1,7 @@
 .stack-work/
 .vscode/
 haddock/
+dist-newstyle/
 dist-docs.*/
 *~
 *.aux
@@ -8,4 +9,4 @@ dist-docs.*/
 *.prof
 *.ps
 *.ser
-cabal.project*
+cabal.project.local*

cabal.project

@@ -0,0 +1,5 @@
+packages:
+    ./
+
+package nanovg
+    flags: +stb_truetype