Provide hie.yaml templates for stack and cabal

.gitignore

@@ -2,5 +2,6 @@ dist/
 .stack-work/
 dist-newstyle/
 cabal.project.local
+hie.yaml
 *~
 *.lock

hie.yaml.cbl

@@ -0,0 +1,15 @@
+# This is a sample hie.yaml file for opening ghcide in
+# ghcide/hie/ide, using cabal as the build system.
+# To use is, copy it to a file called 'hie.yaml'
+
+cradle:
+  cabal:
+
+    - path: "./test"
+      component: "ghcide:ghcide-test"
+
+    - path: "./exe"
+      component: "ghcide:exe:ghcide"
+
+    - path: "./src"
+      component: "lib:ghcide"

hie.yaml.stack

@@ -0,0 +1,14 @@
+# This is a sample hie.yaml file for opening ghcide in
+# ghcide/hie/ide, using stack as the build system.
+# To use is, copy it to a file called 'hie.yaml'
+
+cradle:
+  stack:
+    - path: "./test"
+      component: "ghcide:ghcide-tests"
+
+    - path: "./exe"
+      component: "ghcide:exe:ghcide"
+
+    - path: "./src"
+      component: "ghcide:lib"