Allow referencing conditions by name

This change allows reference with other conditions by name in
definition of a condition, something like:
   conditions:
     cd1: {equals: [{get_param: env_type}, 'prod']}
     cd2: {not: cd1}
     cd3: {equals: [{get_param: zone}, 'fujian']}
     cd4: {and: [cd1, cd3]}

Change-Id: I6a0a00c23aa7d559dedd6998adaa7962d607f315
Co-Authored-By: huangtianhua <huangtianhua@huawei.com>
Blueprint: support-conditions-function
Related-Bug: #1621529
1 file changed
tree: 30600e1e2b0a4ca144a0a0bc29617b9038121d3d
  1. common/
  2. functional/
  3. scenario/