Provision 2001:470:1f13:896::a to 2001:470:1f13:896::f on Eglide

Summary:
Currently, Eglide receives IP from ::1 to ::19, counting in base 10.

To count IPv6 range in hexadecimal will be more coherent.

Thanks to fedai to have asked a question about IPv6 and to @fauve for moral support.

Test Plan:

for n in range (1, 26):
    print(format(n, 'x'))

Reviewers: dereckson

Reviewed By: dereckson

Subscribers: fauve, Sandlayth

Differential Revision: https://devcentral.nasqueron.org/D918