Add issues templates

[khalyomede]

Description

This will help having more structured issues, and essentials information for bugs.

Proposal

2 new issue templates:

• Enhancements
  • "Description" section: the developper describe a bit of context before the actual proposal
  • "Proposal" section: the developper explains what he wants to see as an improvement (code snippet, ...)
• Bug report
  • "Version" section: contains versions for
  • PHP
  • This package
  • Laravel
  • "Description" section: A place where the developper can give a bit of context before explaining how to reproduce the issue
  • "Steps to reproduce" section: Should contains clear guidances to help reproduce the issue
  • "Expected behavior" section: Contain what result the developper expected to have

Notes

The Github tutorial to set this up: Configuring issue templates for your repository.