Latest version that still need extensive testing

[DonutsNL]

• Implemented ability to configure excluded paths using dropdowns
• Added phpsaml configuration page to config menu
• Dont display login button if no valid config is available
• Add install method to PluginPhpSamlConfig::class
• Implement GLPI migration for installation and future updates
• Added PluginPhpSamlExclude::class to handle excludes
• Added PluginPhpSamlExclude front UI and Form
• Replaced exclude logic in PluginPhpSaml::class with call to PluginPhpSamlExclude::class
• Removed all \t (tabs) from all sourcefiles and replaces with 4 spaces per tab
• Aligned all copyright headers in all sourcefiles