v0.9.2

Changelog

95b87d0 Doc: use go build instead of go install
aaeb9e1 array generator: allow random size
8e6d18c constant genrators: allow to create objectId
367e79e dependencies: replace satori/go.uuid by google/uuid
1f5e201 generators: add a binary UUID generator
524bfba harmonize db name in tests/sample config files
92eef40 reference generators: allow referencing from same collection
45e851b update mongodb version for testing