[Version bump] chore(release): publish v1.18.0

Bug Fixes

• angular: support NPM 8 (#501) (5cc2b58)
• delete successful snapshots from the org (#493) (c6d2bfa)
• deps: update dependency devtools-protocol to v0.0.936174 j:cdx-227 (#516) (04970b6)

Features

• add coveo:org:create command (#509) (50aee3c)
• add SourcePullModel Validation (#497) (cd085ba)
• sketch out the spm:new command (#495) (6c21f99)
• spm: add resourceType selection (#502) (7af835e)