3.0.0-beta.5

Angular 8 - 11

The whole version got breaking changes, it is almost a new module.

• Using signature_pad version 3.0.0-beta.4
• Change names of onBeginEvent to drawStart and expose event instead of always true value
• Change names of onEndEvent to drawEnd and expose event instead of always true value
• Adding typing for [options] instead of using any type.
• Publishing changes done in PR wulfsolter#100 so it supports Angular 8+ and many other improvements