chore: Update project structure and add initial code

Author: gabriel-logan

.github/FUNDING.yml

@@ -0,0 +1,14 @@
+# These are supported funding model platforms
+
+github: [gabriel-logan] # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
+polar: # Replace with a single Polar username
+buy_me_a_coffee: gabriellogan
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/workflows/kotlin-pr-check.yml

@@ -0,0 +1,25 @@
+name: Kotlin Pull Request Check
+# With maven
+
+on:
+  pull_request:
+    branches:
+      - main
+
+  workflow_dispatch:
+
+jobs:
+    checking-pr:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v2
+            - name: Set up JDK 11
+              uses: actions/setup-java@v2
+              with:
+                distribution: 'adopt'
+                java-version: '11'
+            - name: Build with Maven
+              run: mvn -B package --file pom.xml
+            - name: Run tests
+              run: mvn test