TransCompressionCommand Inoperable

`TransCompressionCommand` in parquet-tools is intended to allow translation of compression types in parquet files.  We are intending to use this functionality to debug a corrupted file, but this command fails to run at the moment entirely. 

Running the following command (on the uncorrupted file):
```java

java -jar ./parquet-tools-1.11.1.jar trans-compression ~/Downloads/part-00048-69f65188-94b5-4772-8906-5c78989240b5_00048.c000.snappy.parquet
```
This results in 

 
```java

Unknown command: trans-compression
```
 

I believe this is due to the Registry class [silently catching any errors to initialize](https://github.com/apache/parquet-mr/blob/master/parquet-tools/src/main/java/org/apache/parquet/tools/command/Registry.java#L65) which subsequently is [misinterpreted as an unknown command](https://github.com/apache/parquet-mr/blob/master/parquet-tools/src/main/java/org/apache/parquet/tools/Main.java#L200).

We need to: 
1. Write a test for the TransCompressionCommand to figure out why it's showing up as unknown command
1. Probably expand these tests to cover all the other commands

 

This will then unblock our debugging work on the suspect file. 

**Environment**: I am using parquet-tools 1.11.1 on a Mac machine running Catalina, and my parquet-tools jar was downloaded from Maven Central. 
**Reporter**: [Shelby Vanhooser](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=vanhooser)

_{**Note**: *This issue was originally created as [PARQUET-1948](https://issues.apache.org/jira/browse/PARQUET-1948). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

parquet-tools/src/main/java/org/apache/parquet/tools/command/Registry.java と org/apache/parquet/tools/Main.java から始め、報告された trans-compression コマンドを実行して unknown-command の結果を再現します。TransCompressionCommand のテストを追加し、該当する場合は他のコマンドにもカバレッジを広げます。完了の条件は、コマンドが認識され、以前失敗していた理由をテストで説明できることです。

索引モデルが issue の本文から書いたものです。