fix: export module classes from framework root

[TimoGlastra]

Exports the module classes from the framework root. We've noticed that you oftentimes need the classes, with either dependency injection, or as TS type.

I know you've pushed back on this before @jakubkoci, but currently we need to import like this:

import { ConnectionsModule } from 'aries-framework/build/src/modules/connections/ConnectionsModule.ts`

[codecov-commenter]

Codecov Report

Merging #315 (33bae07) into main (8693c49) will increase coverage by 0.19%.
The diff coverage is 92.92%.

@@            Coverage Diff             @@
##             main     #315      +/-   ##
==========================================
+ Coverage   88.07%   88.27%   +0.19%     
==========================================
  Files         218      221       +3     
  Lines        3926     4008      +82     
  Branches      452      464      +12     
==========================================
+ Hits         3458     3538      +80     
- Misses        468      470       +2     

Impacted Files	Coverage Δ
src/agent/AgentConfig.ts	100.00% <ø> (+4.25%)	⬆️
src/decorators/attachment/Attachment.ts	100.00% <ø> (ø)
src/modules/credentials/CredentialsModule.ts	86.66% <0.00%> (ø)
src/modules/credentials/models/Credential.ts	75.00% <0.00%> (ø)
...c/modules/credentials/models/IndyCredentialInfo.ts	60.00% <0.00%> (ø)
src/modules/proofs/ProofsModule.ts	88.00% <0.00%> (ø)
src/types.ts	100.00% <ø> (ø)
src/utils/BufferEncoder.ts	84.61% <50.00%> (-15.39%)	⬇️
src/index.ts	100.00% <100.00%> (ø)
src/modules/basic-messages/index.ts	100.00% <100.00%> (ø)
... and 19 more

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[jakubkoci]

I'm good with this 👍 It makes sense because it's part of the framework's public API. I'm just against exporting everything from everything :)

I'm also not sure if it's good to import one XxxModule class from another. But if it's called from outside of the framework, definitely all good.

[TimoGlastra]

Yeah I agree, I'll see if I can maybe go over all exports an do more specific exports instead of * from.