Android - Added separation for development/production builds (#43)

## Pull Request Description

Added a development build to so it's easier to develop alongside the
current release (Android only atm)

## Issue Being Fixed

Developing removing the actually installed fladder app

Issue Number: N/A

## Checklist

- [ ] If a new package was added, did you ensure it works for all
supported platforms? Is the package also well maintained?
- [ ] Did you add localization for any text? If yes, did you sort the
.arb file using ```arb_utils sort <INPUT_FILE>```?
- [ ] Check that any changes are related to the issue at hand.

Co-authored-by: PartyDonut <PartyDonut@users.noreply.github.com>

icons_launcher-development.yaml

@@ -0,0 +1,24 @@
+icons_launcher:
+  image_path: "icons/development/fladder_icon.png"
+  platforms:
+    android:
+      adaptive_foreground_image: "icons/development/fladder_icon.png"
+      adaptive_background_color: "#21013a"
+      adaptive_monochrome_image: "icons/development/fladder_adaptive_icon.png"
+      notification_image: icons/fladder_notification_icon.png
+      enable: true
+    ios:
+      image_path: "icons/development/fladder_store_icon.jpg"
+      enable: true
+    windows:
+      image_path: "icons/development/fladder_icon_desktop.png"
+      enable: true
+    macos:
+      image_path: "icons/development/fladder_macos_icon.png"
+      enable: true
+    linux:
+      image_path: "icons/development/fladder_icon_desktop.png"
+      enable: true
+    web:
+      favicon_path: "icons/development/fladder_icon_desktop.png"
+      enable: true