Hybrid offshore wind

[kndehaan]

With this PR the modelling of hybrid offshore wind is added to the ETM. This comes with, among others, the following features:

• Hybrid offshore wind turbine that can generate electricity for HV network or directly for connected offshore electrolyser
• Price-based offshore electrolyser that can receive electricity from hybrid wind turbine or from onshore HV network
• Front-end sliders to set installed (relative) capacities of the components and other relevant specs (e.g. costs, full load hours)
• 3 new front-end outputs: a bar chart, Sankey diagram and table that provide data on capacities and energy flows of hybrid offshore wind

Goes with:

• https://github.com/quintel/documentation/pull/195
• https://github.com/quintel/etsource/pull/3067
• https://github.com/quintel/etlocal/pull/524
• https://github.com/quintel/etmodel/pull/4290
• https://github.com/quintel/etdataset/pull/1001
• https://github.com/quintel/merit/pull/154
• https://github.com/quintel/atlas/pull/167
• https://github.com/quintel/etengine/pull/1440