Fixes gh-23301

Closes gh-23191

Closes gh-23190

Update `JarFileEntries` so that the interface is obtained rather than
the concrete implementation. This allows `JarEntry` values to be used
without causing a ClassCastException.

Closes gh-19041

Closes gh-23299

Closes gh-23298

Closes gh-23297

Closes gh-23296

Closes gh-23295

Closes gh-23294

Closes gh-23293

Closes gh-23292

Closes gh-23291

Closes gh-23290

Closes gh-23289

Closes gh-23288

Closes gh-23287

Closes gh-23286

Closes gh-23285

Closes gh-23284

Closes gh-23283

Closes gh-23269

Closes gh-23278

Closes gh-23277

Closes gh-23276

Closes gh-23275

Closes gh-23274

Closes gh-23273

Closes gh-23272

Closes gh-23271

Closes gh-23270

Closes gh-23268

Closes gh-23267

Closes gh-23266

Closes gh-23263

* pr/19041:
  Polish 'Fix signed jar performance issues'
  Fix signed jar performance issues
  Ignore Visual Studio Code Files

Closes gh-19041

Update the performance improvements to push certificate loading
and storage into the `JarFileEntries` class. This allows us to
keep certificates without needing to cache all entry data. We
now also keep certificates and code signers in a dedicated class
which is set whenever the full jar stream as been read, even if
the contained values are `null`. The logic that assumes META-INF
entries are not signed has been removed in favor of delegating to
the streamed entry results.

See gh-19041