Adapt qwat project for control_cable / protection_tube

[sjib]

Adapt project:

• Symbolization cc_ et pt
• Add distiction of scale (1:200 / 1:500)
• add relations fk_folder for new classes

Originally posted by @sjib in qwat/qwat-data-model#388 (comment)

[sjib]

• cable – define signature - add scale range
• cable_point – define signatures Kabelschacht, Kabine
• protection tube – define signature
• demodata class organisation - create sql to import in table organisation
• Add value list layers of protection_tube to project
• Add value list layers of control cable to project
• Add value list layers of organisation to project
• Add organisation layer to project
• Adapt forms for layer sia405cc_cable - valuelists, fk_*
• Adapt forms for layer sia405cc_cable_point - valuelists, fk_*
• Adapt forms for layer sia4405pt_protection_tube - valuelists, fk_* - symbol_ori - integrate changed datamodel first (is not geometry)
• Adapt forms for layer organisation - valuelists, fk_*
• Add document tab to forms

[sjib]

• Schutzrohr:
  Nennweite: fehlender Kommentar
  als TEXT*10, da zum Teil auch Doppelwerte mit Schrägstrich (1500 oder 1500/1000)

[sjib]

Problem with svg Symbol Cabine - see #332