Add nginx-proxy and searx roles

roles/nginx-proxy-docker/files/proxy/.env

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+COMPOSE_PROJECT_NAME=proxy

roles/nginx-proxy-docker/files/proxy/docker-compose.yml

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+version: '2.2'
+
+networks:
+  proxy-tier:
+    external:
+      name: nginx-proxy
+
+services:
+  nginx:
+    image: jwilder/nginx-proxy
+    ports:
+      - 80:80
+      - 443:443
+    volumes:
+      - ./nginx/conf.d:/etc/nginx/conf.d
+      - ./nginx/vhost.d:/etc/nginx/vhost.d
+      - ./nginx/html:/usr/share/nginx/html
+      - ./nginx/certs:/etc/nginx/certs:ro
+      - /var/run/docker.sock:/tmp/docker.sock:ro
+    networks:
+      - proxy-tier
+    restart: always
+
+  letsencrypt-companion:
+    image: jrcs/letsencrypt-nginx-proxy-companion
+#    environment:
+#      - DEBUG=true
+    volumes_from:
+      - nginx
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - ./nginx/certs:/etc/nginx/certs:rw
+    restart: always

roles/nginx-proxy-docker/files/proxy/nginx/conf.d/custom.conf

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+client_max_body_size 10G;