Devops: KTLint to lint Kotlin code (#6)

* Adds KTLint as a GitHub action
* Adds KTLint to the gradle project for IDE integration
* Adds .editorconfig to configure KTLint (android/)

android/src/main/java/com/mrousavy/camera/parsers/LenseFacing+String.kt

@@ -6,10 +6,10 @@ import android.hardware.camera2.CameraCharacteristics
  * Parses Lens Facing int to a string representation useable for the TypeScript types.
  */
 fun parseLensFacing(lensFacing: Int?): String? {
-    return when (lensFacing) {
-        CameraCharacteristics.LENS_FACING_BACK -> "back"
-        CameraCharacteristics.LENS_FACING_FRONT -> "front"
-        CameraCharacteristics.LENS_FACING_EXTERNAL -> "external"
-        else -> null
-    }
+  return when (lensFacing) {
+    CameraCharacteristics.LENS_FACING_BACK -> "back"
+    CameraCharacteristics.LENS_FACING_FRONT -> "front"
+    CameraCharacteristics.LENS_FACING_EXTERNAL -> "external"
+    else -> null
+  }
 }

android/src/main/java/com/mrousavy/camera/parsers/Size+easy.kt

@@ -6,15 +6,15 @@ import kotlin.math.max
 import kotlin.math.min
 
 val Size.bigger: Int
-    get() = max(this.width, this.height)
+  get() = max(this.width, this.height)
 val Size.smaller: Int
-    get() = min(this.width, this.height)
+  get() = min(this.width, this.height)
 
 val SizeF.bigger: Float
-    get() = max(this.width, this.height)
+  get() = max(this.width, this.height)
 val SizeF.smaller: Float
-    get() = min(this.width, this.height)
+  get() = min(this.width, this.height)
 
 fun areUltimatelyEqual(size1: Size, size2: Size): Boolean {
-    return size1.width * size1.height == size2.width * size2.height
+  return size1.width * size1.height == size2.width * size2.height
 }