(GH-14) Add standard AppVeyor config file

Author: gep13

.appveyor.yml

@@ -1,12 +1,30 @@
+#---------------------------------#
+#  Build Image                    #
+#---------------------------------#
+image: Visual Studio 2017
+
 #---------------------------------#
 #  Build Script                   #
 #---------------------------------#
 build_script:
   - ps: .\build.ps1 -Target AppVeyor
 
+#---------------------------------#
 # Tests
+#---------------------------------#
 test: off
 
+#---------------------------------#
+#  Pull Requests                  #
+#---------------------------------#
+pull_requests:
+  do_not_increment_build_number: true
+
+#---------------------------------#
+#  General                        #
+#---------------------------------#
+skip_branch_with_pr: true
+
 #---------------------------------#
 #        Branches to build        #
 #---------------------------------#
@@ -15,12 +33,18 @@ branches:
   only:
     - develop
     - master
-    - /release/.*/
-    - /hotfix/.*/
+    - /release\/.*/
+    - /hotfix\/.*/
 
 #---------------------------------#
 #  Build Cache                    #
 #---------------------------------#
 cache:
-- src\packages -> src\**\packages.config
-- tools -> recipe.cake
+- tools -> recipe.cake, tools/packages.config
+
+#---------------------------------#
+#  Skip builds for doc changes    #
+#---------------------------------#
+skip_commits:
+  # Regex for matching commit message
+  message: /\(doc\).*/