Change StorageLocation to StorageFormat, with more options and used more often.
Update tests.
merge MMcM: Add a storage format clause to the parser

Merge pull request #63 from MMcM/sql-parser/storage-format
https://github.com/FoundationDB/sql-parser/pull/63
Use capture instead of index to separate fixed and variable parts.
merge MMcM: In test comparison, use capture instead of index to separate fixed and variable parts.

Merge pull request #64 from MMcM/sql-parser/compare-without-hashes-regex
https://github.com/FoundationDB/sql-parser/pull/64
Translate extended SHOW syntax to compatible variable name.
merge MMcM: Translate extended SHOW TRANSACTION syntax to compatible variable name.

Merge pull request #65 from MMcM/sql-parser/show-transaction-isolation
https://github.com/FoundationDB/sql-parser/pull/65
Add TypeId's for NATIONAL_ variants of CHAR, VARCHAR, CLOB.
merge MMcM: Add TypeId's for NATIONAL_ variants of CHAR, VARCHAR, CLOB.

Merge pull request #66 from MMcM/sql-parser/national-type-ids
https://github.com/FoundationDB/sql-parser/pull/66