Add blueprints for Adminer, Affine Pro, and AllTube with Docker Compose and metadata

- Added Adminer entry in meta.json with detailed description, logo, and relevant links.
- Introduced Docker Compose configurations for Adminer, Affine Pro, and AllTube services.
- Created template.toml files for each service with default variables for configuration.

blueprints/alltube/docker-compose.yml

@@ -0,0 +1,12 @@
+version: "3.8"
+services:
+  alltube:
+    image: dnomd343/alltube:latest
+    restart: unless-stopped
+    ports:
+      - 80
+    environment:
+      - TITLE=${TITLE}
+      - CONVERT=${CONVERT}
+      - STREAM=${STREAM}
+      - REMUX=${REMUX}