Create a new repository with neither backends nor config object
Note that this is only useful if you wish to associate the repository
with a non-filesystem-backed object database and config store.
Caveats: since this repository has no physical location, some systems
can fail to function properly: locations under $GIT_DIR, $GIT_COMMON_DIR,
or $GIT_INFO_DIR are impacted.
Create a new repository with neither backends nor config object
Note that this is only useful if you wish to associate the repository with a non-filesystem-backed object database and config store.
Caveats: since this repository has no physical location, some systems can fail to function properly: locations under $GIT_DIR, $GIT_COMMON_DIR, or $GIT_INFO_DIR are impacted.