Java stack trace support

[RunDevelopment]

Since the original PR for Java stack traces #916 wasn't continued I decided to try it. So, here is my take on it.

---

This PR adds support for Java stack traces.

There are 3 main types of elements which are highlighted:

1. The summary.
   This is the head of the stack trace and includes the name of the exception and a message.
   Exception in thread "main" java.lang.RuntimeException: A test exception
2. Stack frames.
   These make up the actual stack trace and include the full name of the method and the source.
   at com.stackify.stacktrace.StackTraceExample.methodB(StackTraceExample.java:13)
3. Omitted frames.
   This is a simple message that some frames were omitted.
   ... 27 more

Everything besides these 3 element types will not be highlighted.

Example

[mAAdhaTTah]

Thanks for this. One quick note: let's leave the package-lock.json out of this PR for now, since we don't have one currently. If we're going to add it, we should do that separately.

[RunDevelopment]

Oops, my bad. I forgot to delete it.

[mAAdhaTTah]

Tests all look pretty good here, but I'll need @Golmote or @LeaVerou to review the Regex here. Also got a conflict that will need to be resolved.

[mAAdhaTTah]

If we resolve these conflicts, we can merge this PR.