Added new example - Custom Drawer

[VasuGajjar]

What does this implement/fix? Explain your changes

• I have added a new flutter project for implemening Custom Home Drawer using Transform and Animation Controller. It also uses GestureDetector for dragging.

Does this close any currently open issues?

• [ ] Yes
• [x] No

Any relevant logs, error output, bug-report etc?

None

Any other comments?

• Where has this been tested? Yes, Manually Tested

• Target Platform: Android, iOS

• Configuration Information: None

• Misc:

[VasuGajjar]

hey @nisrulz , i have changed the package name as mentions in the PR rules. please let me know if any changes or issue found. Thank you 😄