Migrate GitVersion to ContinuousDeployment

By default, GitVersion only uses `ContinuousDeployment` on the `develop` branch, and `ContinuousDelivery` on all other branches. This creates a problem when attempting to publish preview releases of particular for integration testing, as that means the versions need to be manually bumped using a tag. By setting the default to `ContinuousDeployment`, the build version will increment with every commit, thus ensuring unique versions. The `master` branch is kept on `ContinuousDelivery` so that it requires manual incrementing via tags.

Author: JeremyCaney

GitVersion.yml

@@ -1,5 +1,7 @@
 assembly-versioning-scheme: MajorMinorPatch
-mode: ContinuousDelivery
-branches: {}
+mode: ContinuousDeployment
+branches:
+  master:
+    mode: ContinuousDelivery
 ignore:
-  sha: []
+  sha: []