[JIRA] (OVIRT-1561) Fix SCM and trigger yamls to support project and custom project

Fix SCM and trigger yamls to support project and custom project --------------------------------------------------------------- Key: OVIRT-1561 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1561 Project: oVirt - virtualization made easy Issue Type: Task Reporter: Gil Shinar Assignee: infra In order to support all types of git URLs and project folders, we have decided to do the following: 1) Git clone dir, $\{WORKSPACE}/\{dir} will always stay $\{WORKSPACE}/\{project} 2) git URL will be different when using default macro and custom-repo macro. for default it'll be: \{git-proto}://\{git-server}/\{gerrit_subpath}\{project} for custom-repo it'll be: \{git-proto}://\{git-server}/\{gerrit_subpath}\{custom_repo} 3) trigger will also have default and custom repo. for default it'll be \{project} for custom-repo it'll be \{custome_repo} custom_repo can be a project name or project name + path