Removes Text Format

[codefromthecrypt]

Per tetratelabs/wabin#1, we've canceled the WebAssembly Text Format feature and moved it to another repository https://github.com/tetratelabs/watzero for resumption or archival.

First, I consolidated the code needed for watzero to work under internal/watzero. Then, I made a new repo like so:

git clone https://github.com/tetratelabs/wazero.git watzero
cd watzero/
git checkout watzero
git subtree split -P internal/watzero -b watzero-only
git checkout watzero-only
git remote add watzero https://github.com/tetratelabs/watzero.git
git push -f watzero watzero-only:main

[codefromthecrypt]

once this is in, I'll move the text format issues to https://github.com/tetratelabs/watzero

[mathetake]

fyi as long as you have the go.mod package name as github.com/tetratelabs/wazero/internal/watzero, not github.com/tetratelabs/watzero in the tetratelabs/watzero repository, you can reference any internal structures

[codefromthecrypt]

@mathetake roger. one intentional act here was exporting some types we otherwise kept hidden as there was a request to manipulate the binary forms. So, I think it is best to not make a dep back on wazero even if it implied some copy/pasta (a lot of it).