[FLINK-37000] Fix MySQL CDC could not handle datetime prior to 1970 properly

[yuxiqian]

Originally reported by @WuChongYong.

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Currently, MySQL connector couldn't properly handle Date and DateTime records prior to 1970-01-01 (Unix epoch).

• DateTime records in Year 0000 are always null.

This behavior is actually expected, since 0000 A.D. does not exist. Common Era starts at Year 0001.

This could not be easily fixed since lots of libraries including MySQL connector and Java Calendar does not really support Year 0000 well (will be converted to 0001 automatically).

• DateTime Records between Year 0001 and 0099 are Shifted to 1970 and 2069.

This could be overridden by debezium.enable.time.adjuster option.

• DateTime Records between 0100 and 1969 with precision digits are not serializable.

This is caused by a glitch in RowDataDebeziumDeserializeSchema and DebeziumEventDeserializationSchema.

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Most part of codes are just tests to cover this rarely used scenario.