Add fastlane automation

Gemfile

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+source "https://rubygems.org"
+
+gem "cocoapods"
+gem "fastlane"

fastlane/Appfile

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+# app_identifier("[[APP_IDENTIFIER]]") # The bundle identifier of your app
+# apple_id("[[APPLE_ID]]") # Your Apple email address
+
+
+# For more information about the Appfile, see:
+#     https://docs.fastlane.tools/advanced/#appfile

fastlane/Fastfile

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+# Usage : bundle exec fastlane (patch | minor | major)
+
+default_platform(:ios)
+podspec_name = "OpenSourceController.podspec" 
+
+platform :ios do
+
+  desc "Release a new version with a patch bump_type"
+  lane :patch do
+    release("patch")
+  end
+
+  desc "Release a new version with a minor bump_type"
+  lane :minor do
+    release("minor")
+  end
+
+  desc "Release a new version with a major bump_type"
+  lane :major do
+    release("major")
+  end
+
+  def release(type)
+    pod_lib_lint
+    version = version_bump_podspec(path: podspec_name, bump_type: type)
+    git_add(path: podspec_name)
+    git_commit(path: [podspec_name], message: "#{version} release")
+    add_git_tag(tag: "#{version}")
+    push_to_git_remote
+    pod_push
+  end
+end