v1.1.7

• Update dependency packages.
• Update CI node versions.
• Extract util functions.
• Improve readme.

v1.1.6

• Update dependency packages.

v1.1.5

• Add error classes.

v1.1.4

• Upgrade dependency and partial development dependencies

v1.1.3

• update tsconfig, target to es2019
• use github action to publish package