[ORCT-190] adjust db table

[xsalonx]

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• branch and/or PR name(s) include(s) JIRA ID
• issue has "Fix version" assigned
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Notable changes for users:

• time based and run based flags are managed the same way:
  • remove endpoint path part time-based
  • flag entity has attribute entire, which means run based flags if true, time based otherwise
  • flag creation endpoint requires it as query parameter

Notable changes for developers:

• add flag types: Good, Bad and Mixed
• add missing option to defined comment in qc flag creation api
• introduce more reasoned solution for acquiring username for addedBy field in qc flags
• remove unnecessary transactions

Changes made to the database:

• fix bug - unfounded usage of flag allowNull: false causing failure of quality flag types insertion
• time based and run based flags are managed the same way:
  • add field entire to flag table