Remove Github Actions and move issue templates to folder usable by Gitlab

.github/FUNDING.yml

-github: ["apognu"]
-custom: [
-  "https://www.paypal.me/apognu"
-]

.github/workflows/develop.yml

-name: Continuous develop build
-on:
-  push:
-    branches:
-      - develop
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-    - name: set up JDK 1.8
-      uses: actions/setup-java@v1
-      with:
-        java-version: 1.8
-    - name: Build with Gradle
-      run: |
-        mkdir -p /home/runner/.android && touch /home/runner/.android/repositories.cfg
-        ./gradlew assembleDebug
-    - name: Create release
-      uses: eine/tip@gha-tip
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-        cwd: ${{ github.workspace }}
-        files: app/build/outputs/apk/debug/app-debug.apk

.github/workflows/release.yml

-name: Release build
-on:
-  push:
-    tags:
-      - "[0-9]+.[0-9]+.[0-9]+"
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-        ref: ${{ github.ref }}
-    - name: Setting up publication keystore
-      run: |
-        echo "${{ secrets.ANDROID_KEYSTORE }}" > ${HOME}/release.jks.asc
-        gpg -q --yes --batch -d --passphrase="${{ secrets.ENCRYPTION_KEY }}" -o ${HOME}/release.jks ${HOME}/release.jks.asc
-        echo -e "signing.store=${HOME}/release.jks\nsigning.key_passphrase=${{ secrets.ANDROID_KEYSTORE_KEY_PASSPHRASE }}\nsigning.alias=release\nsigning.store_passphrase=${{ secrets.ANDROID_KEYSTORE_STORE_PASSPHRASE }}" > local.properties
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
-      with:
-        java-version: 1.8
-    - name: Build Otter
-      run: |
-        mkdir -p /home/runner/.android && touch /home/runner/.android/repositories.cfg
-        ./gradlew assembleRelease
-    - name: Create Otter's release
-      id: create_release
-      uses: actions/create-release@v1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        tag_name: ${{ github.ref }}
-        release_name: ${{ github.ref }}
-        draft: false
-        prerelease: true
-    - name: Upload Otter's artifact (full version)
-      uses: actions/upload-release-asset@v1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.create_release.outputs.upload_url }}
-        asset_path: app/build/outputs/apk/release/app-release.apk
-        asset_name: otter-full-release.apk
-        asset_content_type: application/zip