Include copyright notices in licenses.html

[DNin01]

Resolves #7494

Changes

• Adds a copyright notice, including the year and full name fields, to each license that requires it, and updated license-info.json with that information.
• Line breaks have been inserted in licenses without line breaks for hard word wrapping for consistency.

Reason for changes

The licenses of the libraries we use require giving attribution.

Notes

• License text is sourced from the source code of the libraries for the versions that we use. License information may need to be revised if we update a dependency.
• scratchblocks uses an MIT license, but the copyright notice is written a little differently, so I made a copy of the MIT license file just for it.
• It looks to me like the Scratch Addons website has its own license info file, so we shouldn't need to make any changes to keep displaying library license information on our website.
• Merging this may cause conflicts in Remove handle-licenses.js #7479 (and also the other way around), but I don't really mind. That's been sorted now - don't worry.

Tests

Tested.

[Hans5958]

Keep in mind that there is the "Dependencies" section on the Credits page, which links what libraries that are used and its license identifier, which should be fine, especially for reference only.

[GrahamSH-LLK]

this library has been quite modified by me, not sure how licensing works. source is no longer available tho

[WorldLanguages]

Okay, I merged the other one

[DNin01]

Alright, the conflicts have been resolved, and all the correct licenses seem to be displayed.