Add Auto Complete Feature to sketch code

[ashu8912]

• New feature request

Feature enhancement details:

Adding Auto Complete Feature To The Sketch Code Will Be Very Nice And Will also help newbies as well as professionals to write fast code.

[ashu8912]

I have produced a sample codesandbox that simulates the above behaviour with custom hints
the stylings are a little of in that but i have focused more on how part will fix styling and all if this feature is required
Here is the codesandbox
https://codesandbox.io/s/reverent-minsky-kih4r

[catarak]

Merging this issue into #99.