* win_lineinfile: Clean up and check-mode and diff support
Changes include:
- Use Get-AnsibleParam with -type support
- Replace $result PSObject with normal hash
- Remove trailing semi-colons
- Fix indentation (majority is tabs, few lines using spaces)
- Add check-mode support
- Support `r and `n for CR and LF
- Add diff support
* Implement -WhatIf:$check_mode support
* Keep original formatting as requested