Extend Media Upload

Add folder specification and date time specification to the media uploader.

• Can upload media to the specified folder.
• Can upload media to the specified date time.
• If you want to organize media library by folders, Please use the Organize Media Library by Folders. [youtube https://www.youtube.com/watch?v=czy5KA_7xHY]

2.07 Supported XAMPP. 2.06 Supported XAMPP. 2.05 Plugin Switching Announcement. 2.04 Fixed problem of upload. 2.03 Supported WordPress 5.6. 2.02 Fixed problem of 'upload_dir' filter. 2.01 Added a taxonomy generation process for "Organize Media Library by Folders". 2.00 Fixed help tab. Major rewrite. 1.13 Fixed date and time can be specified in seconds. Fixed saving per-user settings. 1.12 Supported WordPress 5.3. 1.11 In the settings, "Organize my uploads into month- and year-based folders", the latest year/month folder is set. 1.10 Conformed to the WordPress coding standard. 1.09 Fixed problem of getting user ID. 1.08 Fixed problem of getting user ID. 1.07 Fixed problem of getting user ID. 1.06 Fixed the problem of obtaining the shooting date and time of Exif. 1.05 Removed unnecessary code. Fixed problem of path acquisition. 1.04 Fixed problem of folder loading. 1.03 Built in addons update checker. Fixed problem of translation. 1.02 Added a link to add ons. 1.01 Added a link to "Organaize Media Library by Folders". 1.00 Initial release.