Tool for generation user accounts from spec

Implemented:
https://etherpad.openstack.org/p/accounts-yaml-generation
This tool can be used for creating user accounts for
tempest runs in concurrency.

Basic usage:
    ./account_generator.py
	--tag foo
        -c tempest.conf
	--os-username <admin-name>
	--os-password <admin-password>
	--os-tenant-name <admin-tenant>
	-r <concurrency count>
	--with-admin (optional)
	accounts.yaml

Change-Id: I3c313787b0f6f69edcc5ad16c6c186226f619692
diff --git a/setup.cfg b/setup.cfg
index 2de9f34..3159657 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -22,6 +22,7 @@
     javelin2 = tempest.cmd.javelin:main
     run-tempest-stress = tempest.cmd.run_stress:main
     tempest-cleanup = tempest.cmd.cleanup:main
+    tempest-account-generator = tempest.cmd.account_generator:main
 
 oslo.config.opts =
     tempest.config = tempest.config:list_opts