SCHEMA-283. More HBase table/CF properties in KijiTableLayouts.

Contributed by: Alexandre Normande <alexandre.normande@opower.com>
Reviewed by: Aaron Kimball <aaron@wibidata.com>

Review: https://review.kiji.org/r/41/
JIRA: https://jira.kiji.org/browse/schema-283

Updates layout version to layout-1.2.0.
Adds max_filesize and memstore_flushsize to TableLayoutDesc.
Adds block_size and bloom_type properties to LocalityGroupDesc.