Added Calculus Book

[xemeds]

What does this PR do?

Add Resource.

For resources

Description

Added Calculus Volume 1 book.

Why is this valuable (or not)

It's a free accessible book on calculus.

How do we know it's really free?

It's on archive.org.

For book lists, is it a book?

Yes.

Checklist:

• [x] Not a duplicate
• [x] Included author(s) if appropriate
• [x] Lists are in alphabetical order
• [x] Needed indications added (PDF, access notes, under construction)

[eshellman]

Thanks, and welcome to free-science-books!