Update docs (type and symbol solving)

[schalkms]

This is a successor to #1915.
We should update the docs regarding the usage of type and symbol solving.

What do we need to update?

• --plugins path
• Under what conditions does type and symbol solving work?
• Which detekt integrations allow type and symbol solving to work. (CMD, Gradle, Maven...)

[3flex]

Probably the last 4 issues all relate to this, so I'm going to work on it next.

But before updating docs I will need to:

• add support for auto generating Gradle tasks for Android projects
• update Gradle plugin so the bytecode target version can be set. This will avoid warnings (and possibly other problems) when detekt runs with type resolution this is already done, set jvmTarget on detekt task

[schalkms]

Kudos.
I think that’s the right way to go here and I really appreciate that.

[schalkms]

The last created issues in this repo seem all to be related to type and symbol solving, since people use detekt via cmd line.

[schalkms]

Closed, since the todos are done. Work is ongoing to improve the docs in #2259.