Work Item Intro: Tooling

Issue 93 [1] from VCWG includes check list items from TPAC 2018. Two of the
items related to tooling are suggested work for the CCG.  See comment from
Oct 26, 2018
<https://github.com/w3c/vc-data-model/issues/93#issuecomment-433428194> [2]

The work items are:

   -  Create tooling for schema creation
   -  Create tooling for VC creation


[1] https://github.com/w3c/vc-data-model/issues/93
[2] https://github.com/w3c/vc-data-model/issues/93#issuecomment-433428194


.chairs fo VCWG