Helper methods

[gijzelaerr]

This makes the API a bit easier to use. You can now do:

client = oca.Client(ONE_USER + ':' + ONE_PASSWORD, ONE_ENDPOINT)
vmpool = client.vm_template_pool()
vmpool.info()
print(vmpool)

[gijzelaerr]

actually i made a mistake here, the allocation functions are not correctly mapped. I should maybe have added some tests, or just add everything explicitly?

[sysradium]

Yes, I believe you need to add a few tests.