Move analysis_options.yaml to lib/

Move the `analysis_options.yaml` file to `lib/` so that other
packages can use it, and create a symlink to it in the package root.

Author: jamesderlin

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## 0.2.1
 
 * Added a `List.rotateLeft` extension method.
+* Allow the `analysis_options.yaml` file to be consumed by other packages.
 
 ## 0.2.0
 

analysis_options.yaml

@@ -0,0 +1 @@
+lib/analysis_options.yaml