Work on #9 - Numeric codecs for LLBIN fields
Tests for #9
New interface for custom binary field codecs
Document Bcd methods
New IntelliJ project format
ignore workspace
More tests for #9
Consider CustomBinaryField codec for LLBIN/LLLBIN ref #9
runtime slf4j
Fix #9 - Binary parsing with CustomBinaryField for LLBIN/LLLBIN fields