SCHEMA-131. Move HBase classes to org.kiji.schema.hbase.

Move API classes implementing HBase-specific behavior to the
new org.kiji.schema.hbase package:
  HBaseFactory
  HBaseScanOptions
  KijiManagedHBaseTableName
  HBaseColumnName

Adds package-info.java.
Moves associated tests.
Moves dependency-lookup service locator records for HBaseFactory.
Fixes import statements throughout codebase.

Signed-off-by: Lee Sheng <lsheng@wibidata.com>