[IOTDB-1059] Support sql statement insert without timestamp

[Superainbower]

Description

1.This PR support users insert data without timestamp, the server use the current system timestamp to pair with the data points.

2.When the timeseries named with time/timestamp/TIME/TIMESTAMP, it will throw exception.

3.It doesn't support insert mult rows and will throw SQLParserException

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This PR has:

• been self-reviewed.
  • concurrent read
  • concurrent write
  • concurrent read and write
• added documentation for new or modified features or behaviors.
• added Javadocs for most classes and all non-trivial methods.
• added or updated version, license, or notice information
• added comments explaining the "why" and the intent of the code wherever would not be obvious
  for an unfamiliar reader.
• added unit tests or modified existing tests to cover new code paths, ensuring the threshold
  for code coverage.
• added integration tests.
• been tested in a test IoTDB cluster.

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Key changed/added classes (or packages if there are too many classes) in this PR

[qiaojialin]

Great!
For the second scenario, we could report "Time/Timestamp can not be a series name, please use another name."

[Superainbower]

Because IoTDB support create a timeseries named with time/timestamp/TIME/TIMESTAMP now,
So i report "should create it first" to help me judge "time/timestamp/TIME/TIMESTAMP" is a series name or not

[coveralls]

Coverage increased (+0.2%) to 68.108% when pulling cb8ba49 on Superainbower:f_without_time into 1616737 on apache:master.