Add support for mixed or messed up component exchange contexts

[vik378]

• Scenario1:

  • There is a component exchange CEX1 between 2 LCs, LC1 and LC2
  • LC1 has a function F1
  • LC2 has functions F2
  • LC2 has function F4 that is a child of F2
  • F1 has functional exchange FEX1 with F4
  • FEX1 is allocated to CEX1

  Expectation:

  • LC1 and LC2 are shown
  • F1 and F4 are shown with FEX1 in between
  • F1 is shown inside of LC1
  • F4 is shown inside of LC2

• Scenario2:

  • There is a component exchange CEX1 between 2 LCs, LC1 and LC2
  • LC1 has a function F1, F5
  • LC2 has functions F2
  • LC2 has function F4 that is a child of F2
  • F1 has functional exchange FEX1 with F4
  • F5 has functional exchange FEX2 with F2
  • FEX1 is allocated to CEX1

  Expectation:
  something like this but with blue boxes around the green boxes
  

• Scenario3:

  • There is a component exchange CEX1 between 2 LCs, LC1 and LC2
  • There is LC3
  • LC1 had F1 but not anymore
  • LC3 has F1
  • LC2 has functions F2
  • F1 has functional exchange FEX1 with F2
  • FEX1 is still allocated to CEX1 even though the source/target F1 was moved away to another component, Capella did not clean up the old and now erroneous allocation