Export as GPML remarks

• Colours of pathways/compartments and their fonts are not preserved.
  Names of uncovered pathways/compartments are displayed in the top left corner of canvas instead of the rectangular's inside.
  CellD: https://pg-sandbox.uni.lu/minerva/index.xhtml?id=Metabolism
  GPML: https://pg-sandbox.uni.lu/minerva/index.xhtml?id=modelGPML-01

• After exporting complex (regular/hypothetical) to GPML, any complex is drawn with dashed line.
  CellD: https://pg-sandbox.uni.lu/minerva/index.xhtml?id=Metabolism&x=4731&y=959&zoom=8&search=complex%20IV&
  GPML: https://pg-sandbox.uni.lu/minerva/index.xhtml?id=modelGPML-01&x=4731&y=953&zoom=8&search=csa42&
  But, empty complex is not light blue colour and not dashed line. It's name is also preserved (see below 3.).
  GPML: https://pg-sandbox.uni.lu/minerva/index.xhtml?id=modelGPML-01&x=7071&y=2317&zoom=8&search=AMPK&

• Complexes names are changed after export (complex IV -> csa42) and its name is hidden.
  CellD: https://pg-sandbox.uni.lu/minerva/index.xhtml?id=Metabolism&x=4731&y=959&zoom=8&search=complex%20IV&
  GPML: https://pg-sandbox.uni.lu/minerva/index.xhtml?id=modelGPML-01&x=4731&y=953&zoom=8&search=csa42&

• Known transition omitted and unknown transition are drawn as state transition.

• All reduced notation reactions are drawn as state transition reactions.

• Reversed reactions are not drawn.

• Colours of reactions are not preserved.

• Arrows are not drawn correctly in reactions protein - RNA.

• Elements modification sites are not preserved.

• Activated element - the dashed rectangle is not drawn.
  CellD: https://pg-sandbox.uni.lu/minerva/index.xhtml?id=unknown-rections-check
  GPML: https://pg-sandbox.uni.lu/minerva/index.xhtml?id=unknown-rections-check-model