Feature/dynamic shards

[lbschanno]

Add the ability for define custom ShardIdGenerators that can be added to ShardIdFactory and used to override shard id generation for any records considered applicable for the generators.

Closes https://github.com/NationalSecurityAgency/datawave/issues/2632

[lbschanno]

Tested this via quickstart. Adding the following to warehouse/ingest-configuration/src/main/resources/config/shard-ingest-config.xml:

<property>
    <name>shardIdFactory.generator.1</name>
    <value>datawave.ingest.mapreduce.handler.shard.ShiftOnDay</value>
</property>
<property>
    <name>shardIdFactory.generator.1.datatypes</name>
    <value>myjson</value>
</property>
<property>
    <name>shardIdFactory.generator.1.begin</name>
    <value>20060101</value>
</property>
<property>
    <name>shardIdFactory.generator.1.end</name>
    <value>20130331</value>
</property>

Results in the following shards in the shard table after installing and initializing datawave:

20070924_1 tvmaze\x00-r5sogy.30uc2y.a9zr4g:ORIG_FILE\x00tvmaze-api.json|5|0 [PRIVATE|(BAR&FOO)]
20070924_1 tvmaze\x00-r5sogy.30uc2y.a9zr4g:PREMIERED\x002007-09-24 [PRIVATE|(BAR&FOO)]
20070924_1 tvmaze\x00-r5sogy.30uc2y.a9zr4g:RATING_AVERAGE.RATING_0.AVERAGE_0\x008.2 [PRIVATE|(BAR&FOO)]
20070924_1 tvmaze\x00-r5sogy.30uc2y.a9zr4g:RUNTIME\x0030 [PRIVATE|(BAR&FOO)]
20070924_1 tvmaze\x00-r5sogy.30uc2y.a9zr4g:SCHEDULE_DAYS.SCHEDULE_0.DAYS_0\x00Thursday [PRIVATE|(BAR&FOO)]
20070924_1 tvmaze\x00-r5sogy.30uc2y.a9zr4g:SCHEDULE_TIME.SCHEDULE_0.TIME_0\x0020:00 [PRIVATE|(BAR&FOO)]

Compared to the original:

20070924_0 tvmaze\x00-r5sogy.30uc2y.a9zr4g:ORIG_FILE\x00tvmaze-api.json|5|0 [PRIVATE|(BAR&FOO)]
20070924_0 tvmaze\x00-r5sogy.30uc2y.a9zr4g:PREMIERED\x002007-09-24 [PRIVATE|(BAR&FOO)]
20070924_0 tvmaze\x00-r5sogy.30uc2y.a9zr4g:RATING_AVERAGE.RATING_0.AVERAGE_0\x008.2 [PRIVATE|(BAR&FOO)]
20070924_0 tvmaze\x00-r5sogy.30uc2y.a9zr4g:RUNTIME\x0030 [PRIVATE|(BAR&FOO)]
20070924_0 tvmaze\x00-r5sogy.30uc2y.a9zr4g:SCHEDULE_DAYS.SCHEDULE_0.DAYS_0\x00Thursday [PRIVATE|(BAR&FOO)]
20070924_0 tvmaze\x00-r5sogy.30uc2y.a9zr4g:SCHEDULE_TIME.SCHEDULE_0.TIME_0\x0020:00 [PRIVATE|(BAR&FOO)]

Note that the value of num.shards was set to 1.