[SPARK-6776] [SQL] [WIP] More Parquet compatibility tests

[liancheng]

This PR is a follow-up of #7231. It adds more Parquet compatibility tests, mostly related to various shapes of complex types.

TODO

• Add equivalent parquet-avro tests for parquet-thrift
• Optional: figure out why Thrift generated Java code crashes Scala 2.11 compiler ([SPARK-8959] [SQL] [HOTFIX] Removes parquet-thrift and libthrift dependencies #7330), replace testing Parquet files with generated Thrift Java source files, which are much easier to maintain.

[SparkQA]

Test build #37641 has finished for PR 7472 at commit 87b59ab.

• This patch fails Spark unit tests.
• This patch merges cleanly.
• This patch adds no public classes.

[liancheng]

Added a wrong entry to .gitignore, generated Suit.java wasn't committed, and caused the last build error.

[SparkQA]

Test build #37687 has finished for PR 7472 at commit b1be549.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[liancheng]

I'm closing this since these test cases are added in other PRs.