Remove cocoapod dependencies

[nplasterer]

With the deprecation of macOS-12 we need to remove our dependencies on several cooapods.

[nplasterer]

We should also try to fix the docs in this PR.

[nplasterer]

Tests pass and example app builds.
I had to remove wallet connect because it depended on an old version of cocoapods.

To get it working on your machine I would follow these steps

• Clean Build Folder
• Reset Package Caches
• Resolve Package Versions
• Build

[cameronvoell]

Tests pass and example app builds. I had to remove wallet connect because it depended on an old version of cocoapods.

To get it working on your machine I would follow these steps

• Clean Build Folder
• Reset Package Caches
• Resolve Package Versions
• Build

I had to go to build settings "Frameworks, LIbraries, and Embedded Content" and manually select secp256k1 and click the - button to remove it. There is a diff in git so I'll go ahead and commit.

Example app and tests running for me now