Final Release -- Obsolete in Angular 10.1

Update the readme to say this library is unnecessary in angular 10.1 and beyond.

Angular 10 Compatibility Release

update to angular 10 libraries

test beta publishing workflow

test circleci beta publish workflow (won't actually publish)

Angular 9 Compatibility Release

v9.0.0

update readme, version for 9.0.0

test Angular 9 compatibility dry-run 13

v9.0.0-beta.5.9

more debugging deploy

test Angular 9 compatibility dry-run 12

v9.0.0-beta.5.7

debugging publish

test Angular 9 compatibility dry-run 14

v9.0.0-beta.5.10

debugging

test Angular 9 compatibility dry-run 11

v9.0.0-beta.5.6

more deploy debugging

test Angular 9 compatibility dry-run 10

v9.0.0-beta.5.5

still debugging publishing

test Angular 9 compatibility dry-run 9

v9.0.0-beta.5.4

still trying to deploy