Fixes RM-12381: add deployment version information

Deployment version information will be a free text that will be optionally placed in a file in config/deploy-version. The contents of this file will be a string, only its first 20 characters will be taken into account, the rest will be ignored.

At build time, if this file is present, its contents will be persisted in AD_System.version. About popup will include this information in a new Deployment Version section.

Result:

Links:

• Try-backoffice
• Documentation