Add INTERVAL_YEAR_MONTH and INTERVAL_DAY_TIME types

[asfimport]

For completeness and compatibility with Arrow and SQL types.
Those are related to the existing INTERVAL type.
some references:

• https://msdn.microsoft.com/en-us/library/ms716506(v=vs.85).aspx
• http://www.techrepublic.com/article/sql-basics-datetime-and-interval-data-types/
• https://www.postgresql.org/docs/9.3/static/datatype-datetime.html
• https://docs.oracle.com/html/E26088_01/sql_elements001.htm
• http://www.ibm.com/support/knowledgecenter/SSGU8G_12.1.0/com.ibm.sqlr.doc/ids_sqr_123.htm

Reporter: Julien Le Dem / @julienledem
Assignee: Julien Le Dem / @julienledem

Related issues:

• Add NULL type to Bring Parquet logical types to par with Arrow (blocks)

PRs and other links:

• PR

_{Note: This issue was originally created as PARQUET-675. Please see the migration documentation for further details.}

[asfimport]

Julien Le Dem / @julienledem:
PR: #43