Add handling for numeric fields

[javasoze]

add support for parsing and printing when dealing with numeric fields

[anacronw]

Are all of lucene's dates stored as binaries? I'm trying to retrieve the value of my date field given the printed utf8 string

Awesome tool by the way :)

[anacronw]

Ah, I compared with Luke to get a solution. I was able to read the long value of my lucene index value via:

NumericUtils.prefixCodedToLong( text )

where text is the BytesRef of the value. It seems its using this variable encoding technique - which explains why it took me so long to figure out!

[Damiox]

Is this issue also going to add support for searching numeric fields through the search command?
I've noticed that for QueryParser to work correctly w/ numeric fields you need to configure the field in QueryParser beforehand (https://github.com/apache/lucene-solr/blob/master/lucene/queryparser/src/test/org/apache/lucene/queryparser/flexible/standard/TestPointQueryParser.java#L36-L38)