A gradle task that merges Log4j2Plugins.dat
from the various dependencies in a single file.
Useful when building a standalone jar.
If Log4j2Plugins.dat is not properly merged, log4j2 will print something like this:
ERROR StatusLogger Unrecognized format specifier [d]
ERROR StatusLogger Unrecognized conversion specifier [d] starting at position 16 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [thread]