Resolve "Logic Gates with over 2 inputs"

Closes #560 (closed)

changed milestone to %v14.0.0~alpha.0

added CellDesigner enhancement labels

added 9 commits

• 89e3d98e - 1 commit from branch master
• 9b41c81e - EditPoints refactored - the data structure should be allowed to store...
• 666e9c99 - append name only if it's not empty
• 342d943d - exported xml is more readable
• a18cb25d - allow to parse operator reaction with more than 2 input reactants
• e970d2ad - CellDesigner converter is required in normal scope (not only for tests)
• a11cac28 - product lines are computed properly
• 12d3d1dd - Merge branch 'master' into 560-logic-gates-with-over-2-inputs
• bad41eac - proper base points are used when computing coordinates for reactions with two reactants

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unmarked as a Work In Progress

enabled an automatic merge when the pipeline for bad41eac succeeds

added 8 commits

• bad41eac...724d5139 - 7 commits from branch master
• 6fde2e81 - Merge branch 'master' into 560-logic-gates-with-over-2-inputs

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mentioned in commit 0f328b00

merged