Run SwiftFormat in GH Action (#28)

scripts/ktlint.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if which ktlint >/dev/null; then
+  cd android && ktlint -F ./**/*.kt*
+else
+  echo "warning: KTLint not installed, download from https://github.com/pinterest/ktlint"
+fi

scripts/swiftformat.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if which swiftformat >/dev/null; then
+  cd ios && swiftformat .
+else
+  echo "warning: SwiftFormat not installed, download from https://github.com/nicklockwood/SwiftFormat"
+fi

scripts/swiftlint.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if which swiftlint >/dev/null; then
+  cd ios && swiftlint --fix && swiftlint
+else
+  echo "warning: SwiftLint not installed, download from https://github.com/realm/SwiftLint"
+fi