Debian: T7762: extend package version with a number always counting up

This extends commit 53d8ed6cc01e ("Debian: T7762: adjust vyos-1x package version
to not mention 1.5 in any way") with a counter that counts the number of commits
since the beginning to become HEAD. It kind of mimics "git describe --tags"
where commits after the last Git tag are counted.

Why do we need it? It's better for sorting multiple revisions of the vyos-1x
package, as we are unable to sort using a commit ID which was the commit before
one or another.

Packages are now named e.g.:

vyos-1x_999.0-12876-gb1b4545cb_amd64.deb
vyos-1x-aws_999.0-12876-gb1b4545cb_all.deb
vyos-1x-dbgsym_999.0-12876-gb1b4545cb_amd64.deb
vyos-1x-smoketest_999.0-12876-gb1b4545cb_all.deb
vyos-1x-vmware_999.0-12876-gb1b4545cb_all.deb

Meaning it is the 12876th commit since repo start and the commit ID used
for the build is b1b4545cb.

0 files changed, 0 insertions, 0 deletions