Add _oasis

Signed-off-by: John Else <john.else@citrix.com>
Update .gitignore

Signed-off-by: John Else <john.else@citrix.com>
Update OASIS

Signed-off-by: John Else <john.else@citrix.com>
Add to _tags

Signed-off-by: John Else <john.else@citrix.com>
Use Fhs instead of Xapi_globs

Signed-off-by: John Else <john.else@citrix.com>
Use xcp-inventory package

Signed-off-by: John Else <john.else@citrix.com>
Add forkexec dependency

Signed-off-by: John Else <john.else@citrix.com>