MDBF-917: Bintar deps validation tests

This commit introduces two different validation scripts.
* One that checks dependencies of ELF files in bintar archives.
* One that does a smoke test on bintar archives:
  Goes through each supported distribution and starts a bare-bones
  container image. Then within the image it does:
  1. Extract the archive mariadb-install-db
  2. Run ./mariadb-install-db
  3. Start ./mariadbd as a process inside the container
  4. Use the ./mariadb client from the archive to connect and run
     SELECT VERSION().

Author: cvicentiu

requirements.txt

@@ -13,3 +13,4 @@ python-dotenv
 pyzabbix
 sqlalchemy==1.3.23
 treq
+python-magic