At present, we have several sub-programs within the repository that are not critical to the functioning of the core software, but whose dependencies are tracked as part of the main project's module. This means that it's harder for us to track which dependencies are really necessary for the core code, and this makes it harder to assess the security risk associated with those dependencies.

For instance:

• test/e2e contains our E2E tests, but these are not built into a CometBFT binary
• test/loadtime contains a tool to assist us with QA, but also is not built into the CometBFT binary

We should create separate Go modules for each of these "sub-programs" so as to reduce the number of dependencies in the core go.mod file for CometBFT.