reintroduce the compiler API

src/compiler/api/GF/Support.hs

@@ -0,0 +1,19 @@
+module GF.Support(
+           -- * Supporting infrastructure and system utilities
+           module GF.Infra.Location,
+           module GF.Infra.Option,
+           module GF.Data.Operations,
+           module GF.Infra.UseIO,
+           module GF.System.Catch,
+           module GF.System.Console,
+           -- ** Binary serialisation
+           Binary,encode,decode,encodeFile,decodeFile
+  ) where
+
+import GF.Infra.Location
+import GF.Data.Operations
+import GF.Infra.Option
+import GF.Infra.UseIO
+import GF.System.Catch
+import GF.System.Console
+import Data.Binary