[ROCKETMQ-239]fix query message by time and fix get queue offset by time

[lindzh]

When using queryMessageByTime or searchOffsetByTime or resetOffsetByTime , DefaultMessageStore return offset is not so accurate as we want.

[coveralls]

Coverage increased (+0.3%) to 39.417% when pulling c37adb5 on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.3%) to 39.417% when pulling c37adb5 on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.4%) to 39.511% when pulling 2c24b67 on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.4%) to 39.511% when pulling 2c24b67 on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.4%) to 39.511% when pulling 2c24b67 on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.5%) to 39.627% when pulling a8835c4 on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.5%) to 39.627% when pulling a8835c4 on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.6%) to 39.7% when pulling f2f2fba on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.6%) to 39.7% when pulling f2f2fba on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.6%) to 39.7% when pulling f2f2fba on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.6%) to 39.711% when pulling d1f2b9d on lindzh:fix_query_message_by_time into d414920 on apache:master.

[coveralls]

Coverage increased (+0.6%) to 39.648% when pulling 8302bb8 on lindzh:fix_query_message_by_time into aa1c757 on apache:develop.

[coveralls]

Coverage increased (+0.6%) to 39.648% when pulling 8302bb8 on lindzh:fix_query_message_by_time into aa1c757 on apache:develop.

[coveralls]

Coverage increased (+0.6%) to 39.637% when pulling e3988d3 on lindzh:fix_query_message_by_time into 332df78 on apache:develop.

[coveralls]

Coverage increased (+0.6%) to 39.637% when pulling e3988d3 on lindzh:fix_query_message_by_time into 332df78 on apache:develop.

[coveralls]

Coverage increased (+0.6%) to 39.508% when pulling 9ebcd6b on lindzh:fix_query_message_by_time into 1bbd4cd on apache:develop.

[dongeforever]

@vongosling @zhouxinyu @Jaskey please help a review.

[zhouxinyu]

Missing the JavaDoc of new param isGetTimeLast here. BTW, isGetTimeLast is confused~

[lindzh]

Yes,and the JavaDoc if param isGetTimeLast has been added

[coveralls]

Coverage increased (+0.6%) to 40.584% when pulling ddb1cc7 on lindzh:fix_query_message_by_time into a096580 on apache:develop.

[lindzh]

Please help a review,Accuracy message offset search by store time has been fixed.

[lizhanhui]

I scrutinized the code changes. Corner cases are handled properly and things look good except variables/method naming.

[vongosling]

@lindzh I will close the pr, if you happened to the same question, please let me know.