New ovs init command

ovs init initialises the certificate authority and ovs configuration.
Previously these tasks were performed by special jobs for the package
manager. Using a plain shell script is easier to test and uncouples
the configuration of ovs from the package manager. The configuration
steps were just writing text files from templates anyway.

These changes also include removing the openssl ASN1 workaround hacks.

There is still a lot of work to do to get ovs as a deb package without
having to rely on the more advanced debian packaging features present
in the files like debian/changelog, debian/compat, debian/templates
etc. but this is a start!
1 job for initcmd in 44 seconds (queued for 1 second)
Status Name Job ID Coverage
  Package
failed package #1615

00:00:44

 
Name Stage Failure
failed
package Package
 * [new ref]         refs/pipelines/749 -> refs/pipelines/749
* [new branch] initcmd -> origin/initcmd
Checking out 9f46aa87 as initcmd...

Skipping Git submodules setup
$ debian/mkdeb
dpkg-deb: error: parsing file 'openvpn-server_9f46aa87/DEBIAN/control' near line 7:
missing 'Package' field
ERROR: Job failed: exit code 1