shortuuid 2.1.1

Generate short uuid (shorter version of 32 bit Guid). It will be useful if you need unque id that is in shorter format.

2.1.0 3 August 2020.

• Add default parameter as null in shortv4() function.

2.0.0 1 July 2020.

• Update to static functions.

1.0.1 22 Jun 2020.

• Update CI build.
• Format codes

1.0.0 22 Jun 2020.

• Port short-uuid v3.1.1 from NodeJs.