Fix the issue with creating parquet with just FLOAT physical type

[Selfeer]

When trying to create a file with just FLOAT as a physical type we get the error.

Structure:

{
  "fileName": "float_examples.parquet",
  "options": {
    "writerVersion": "1.0",
    "compression": "GZIP",
    "rowGroupSize": 256,
    "pageSize": 1024
  },
  "schema": [
    {
      "name": "float1",
      "schemaType": "required",
      "physicalType": "FLOAT",
      "data": [1.2]
    }
  ]
}

Exception in thread "main" java.lang.IllegalArgumentException: Error adding value to group. Value type mismatch for column: float1
	at GenerateParquet.appendValueToGroup(GenerateParquet.java:582)
	at GenerateParquet.insertDataIntoGroup(GenerateParquet.java:478)
	at GenerateParquet.writeData(GenerateParquet.java:407)
	at GenerateParquet.generateParquet(GenerateParquet.java:94)
	at GenerateParquet.main(GenerateParquet.java:43)
Caused by: java.lang.ClassCastException: message MySchema {
  required float float1;
}
 is not primitive
	at org.apache.parquet.schema.Type.asPrimitiveType(Type.java:258)
	at org.apache.parquet.example.data.simple.SimpleGroup.add(SimpleGroup.java:233)
	at org.apache.parquet.example.data.Group.add(Group.java:59)
	at GenerateParquet.appendValueToGroup(GenerateParquet.java:553)
	... 4 more