Add script that allows you to "import" a workspace from another server (HEXA-1663)

[bramj]

This script does a best-effort import of an OpenHEXA workspace.

Example usage

./script/migrate_workspace.py --help

./script/migrate_workspace.py \
	--source-email bjans@bluesquarehub.com \
	--source-password secret \
	--target-email root@openhexa.org \
	--target-password secret
	
	
./script/migrate_templates.py \
	--source-email bjans@bluesquarehub.com \
	--source-password secret \
	--target-email root@openhexa.org \
	--target-password secret