Move main to allow for new executables

package.yaml

@@ -50,6 +50,7 @@ dependencies:
 - extra
 - primitive
 - streaming
+- repa
 
 library:
   source-dirs: src
@@ -60,7 +61,7 @@ executables:
     #  loop-exe:
   dodge:
     main:                Main.hs
-    source-dirs:         app
+    source-dirs:         appDodge
     ghc-options:
     - -threaded
     - -O2
@@ -77,6 +78,23 @@ executables:
 #    - -hiedir=.hie
     dependencies:
     - loop
+  hetris:
+    main:        Hetris.hs
+    source-dirs: appHetris
+    ghc-options:
+    - -threaded
+    - -O2
+    - -rtsopts
+    - -with-rtsopts=-N
+    - -flate-dmd-anal
+    - -fno-liberate-case 
+    - -fno-state-hack
+    - -funfolding-use-threshold1000 
+    - -funfolding-keeness-factor1000 
+    - -fllvm 
+    - -optlo-O3
+    dependencies:
+    - loop
 
 tests:
   loop-test: