Unable to compile generated class when avro schema name is too long

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When the name of an avro schema is too long, the Java class is unable to be created as the file name becomes too long. This occurs because the `SchemaAssistant` class returns the name of the schema when the type is a record, and uses that as a component of the generated class name in `FastDeserializerGeneratorBase` and `FastSerializerGenerator`.

An example stack trace for a failure in creating the Deserializer is
```
com.linkedin.avro.fastserde.FastDeserializerGeneratorException: java.io.FileNotFoundException: /tmp/generated18270964553371151670/com/linkedin/avro/fastserde/generated/deserialization/AVRO_1_11/StrategyKey_AND_FilteringData_JOINED_AND_PreviousDayPricingParametersDerivativePricer_v1_AND_PricingParametersDerivativePricer_v1_JOINED_AND_AutoPriceOffsetParameters_JOINED_AND_JarvisBidAskOffsetParameters_JOINED_AND_AutoPriceOffset_JOINED_AND_ManualPriceOffset_JOINED_AND_VolatilityOffset_JOINED_JOINED_AND_AutoBidAskOffset_AND_DimerParameters_JOINED_AND_QuoterParameters_JOINED_AND_HitterParameters_JOINED_AND_InstrumentTradingParameters_JOINED_AND_ListingPricingParameters_JOINED_JOINED_GenericDeserializer_385168959_385168959.java (File name too long)
at com.linkedin.avro.fastserde.FastDeserializerGenerator.generateDeserializer(FastDeserializerGenerator.java:181)
at com.linkedin.avro.fastserde.FastSerdeCache.buildFastGenericDeserializer(FastSerdeCache.java:503)
at com.linkedin.avro.fastserde.FastSerdeCache.buildGenericDeserializer(FastSerdeCache.java:531)
at com.linkedin.avro.fastserde.FastSerdeCache.lambda$getFastGenericDeserializer$4(FastSerdeCache.java:276)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.io.FileNotFoundException: /tmp/generated18270964553371151670/com/linkedin/avro/fastserde/generated/deserialization/AVRO_1_11/StrategyKey_AND_FilteringData_JOINED_AND_PreviousDayPricingParametersDerivativePricer_v1_AND_PricingParametersDerivativePricer_v1_JOINED_AND_AutoPriceOffsetParameters_JOINED_AND_JarvisBidAskOffsetParameters_JOINED_AND_AutoPriceOffset_JOINED_AND_ManualPriceOffset_JOINED_AND_VolatilityOffset_JOINED_JOINED_AND_AutoBidAskOffset_AND_DimerParameters_JOINED_AND_QuoterParameters_JOINED_AND_HitterParameters_JOINED_AND_InstrumentTradingParameters_JOINED_AND_ListingPricingParameters_JOINED_JOINED_GenericDeserializer_385168959_385168959.java (File name too long)
at java.base/java.io.FileOutputStream.open0(Native Method)
at java.base/java.io.FileOutputStream.open(FileOutputStream.java:293)
at java.base/java.io.FileOutputStream.(FileOutputStream.java:235)
at java.base/java.io.FileOutputStream.(FileOutputStream.java:184)
at com.sun.codemodel.writer.FileCodeWriter.openBinary(FileCodeWriter.java:91)
at com.sun.codemodel.CodeWriter.openSource(CodeWriter.java:100)
at com.sun.codemodel.writer.FilterCodeWriter.openSource(FilterCodeWriter.java:67)
at com.sun.codemodel.writer.ProgressCodeWriter.openSource(ProgressCodeWriter.java:76)
at com.sun.codemodel.JPackage.createJavaSourceFileWriter(JPackage.java:486)
at com.sun.codemodel.JPackage.build(JPackage.java:437)
at com.sun.codemodel.JCodeModel.build(JCodeModel.java:311)
at com.sun.codemodel.JCodeModel.build(JCodeModel.java:280)
at com.sun.codemodel.JCodeModel.build(JCodeModel.java:259)
at com.sun.codemodel.JCodeModel.build(JCodeModel.java:287)
at com.linkedin.avro.fastserde.FastSerdeBase.compileClass(FastSerdeBase.java:165)
at com.linkedin.avro.fastserde.FastDeserializerGenerator.generateDeserializer(FastDeserializerGenerator.java:173
```

Start with SchemaAssistant and trace how record names flow into FastDeserializerGeneratorBase and FastSerializerGenerator, using the stack trace as the entry point. Inspect the generated class-name construction and compilation path in FastDeserializerGenerator and FastSerdeBase. Done means a schema with a very long name can generate and compile without a FileNotFoundException caused by the output filename.

Written by the indexing model from the issue text.