added support for spatie media library

New Changes

• improved dropzone dynamic section,
• now you can add multiple same type dropzone in one page dynamically,
• added spatie media library,
• added custom path generator for spatie media library,
• added MediaLibrary service class for dynamic feel.

v1.1 - Reusable simple dropzone laravel

Changes:

• Added missing service class

v1 - Reusable simple dropzone laravel

Update README.md