build.config: Move erlydtl to run later

Run erlydtl after compilation of project src. This accommodates erlydtl configs that include custom modules.

build.config

@@ -10,7 +10,6 @@ core/index
 core/deps
 
 # Plugins that must run before Erlang code gets compiled.
-plugins/erlydtl
 plugins/protobuffs
 
 # Core modules, continued.
@@ -28,6 +27,7 @@ plugins/ci
 plugins/ct
 plugins/dialyzer
 plugins/edoc
+plugins/erlydtl
 plugins/escript
 plugins/eunit
 plugins/relx