create custom domain for integration tests#89

https://6543.codeberg.page/test_pages-server_custom-mock-domain/@main/README.md

https://6543.localhost.mock.directory:4430/test_pages-server_custom-mock-domain/@main/README.md

dig mock-pages.codeberg-test.org 

; <<>> DiG 9.18.1-1ubuntu1.1-Ubuntu <<>> mock-pages.codeberg-test.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38810 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1232 ;; QUESTION SECTION: ;mock-pages.codeberg-test.org.	IN	A ;; ANSWER SECTION: mock-pages.codeberg-test.org. 3600 IN	CNAME	main.test_pages-server_custom-mock-domain.6543.localhost.mock.directory. main.test_pages-server_custom-mock-domain.6543.localhost.mock.directory. 1799 IN A 127.0.0.1 ;; Query time: 1780 msec ;; SERVER: 1.1.1.1#53(1.1.1.1) (UDP) ;; WHEN: Mon Jun 13 13:49:05 CEST 2022 ;; MSG SIZE rcvd: 158 

```sh dig mock-pages.codeberg-test.org ``` ```sh ; <<>> DiG 9.18.1-1ubuntu1.1-Ubuntu <<>> mock-pages.codeberg-test.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38810 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1232 ;; QUESTION SECTION: ;mock-pages.codeberg-test.org. IN A ;; ANSWER SECTION: mock-pages.codeberg-test.org. 3600 IN CNAME main.test_pages-server_custom-mock-domain.6543.localhost.mock.directory. main.test_pages-server_custom-mock-domain.6543.localhost.mock.directory. 1799 IN A 127.0.0.1 ;; Query time: 1780 msec ;; SERVER: 1.1.1.1#53(1.1.1.1) (UDP) ;; WHEN: Mon Jun 13 13:49:05 CEST 2022 ;; MSG SIZE rcvd: 158 ```