Attachment name for difference type attachment.

[trganda]

User can diffenece type attachment to obsidian, and by default, they may be have different name based on operation and file type.

• If you pasted the image file in obsidian, it always named with prefix "Pasted Image ".
• If you paste or drop other file in obsidian, it will keep the original name.

When the first time, I develop this plugins is for unified naming of my attachemnt (especially for image file).
But It's not a good idea, if drop a pdf or ppt to obsidian, you may want keep the original file name (or combine with a date), as described in #10.

This feature will add an option if enabled to handle all attachment.

• You can set a regex to match the file extension, and decide how to rename them when add them to obsidian.