Added new parameter `ts_energy_(s)` to which total energy is
calculated. This parameter has the sample dimension last, as required
by the SCENRED2 tool. This allowed changing all other time series
to have indices `s, f, t` instead of previous `f, t, s` and dropping
the set `fts` completely.

Fixes #105

#65: *v_startup* divided into *v_startup_LP* and *v_startup_MIP* variants to avoid undesired behavior when using integer online variables.

*r_resDemandLargestInfeedUnit* calculated only for nodes with units that can fail to avoid saving nonsensical results.

*r_totalObj* is now recorded separately for each *tSolve* in order to allow better diagnostics of how the simulation proceeded.

Fixes to the diagnostic result vectors, as well as adding a command line argument to include them only when necessary.

Changing the 'p_nuRes2Res(node, unit, restype, up_down, restype)' description and function so that the first 'restype' also provides the second 'restype'.
Also moving the 'r_reserve2Reserve' calculation from "4a_outputVariant.gms" to "4b_outputInvariant" for efficiency.

Output reserve2reserve (included in r_reserve, but there is also separate r_reserve2Reserve that should show just reserve to reserve provision). Should be tested.

Set 'sft' does not contain 'ft_realized' which caused some important variable fixes not being made. Fixed by adding new sets 'sft_realized' and 'sft_realizedNoRseset' which include the realised t's.

Note: Smoothing for ts_node is not implemented yet

The calculation was done errorneously inside an msft loop.

Samples can now be used to describe uncertain future after the forecast horizon

"restypeReleasedForRealization" "r_reserve" results now persist despite them being freed for the realized time steps.

Reserve dummy variables use similar indexing as other reserve variables (again), and should now "stack" properly on each other so that lacking reserves in the commitment phase (vq_resDemand) are not penalized again in the real-time phase (vq_resMissing).

Reserve feasibility variables are now generated for each forecast branch separately despite other reserve commitments being common between the branches.
This should avoid potential issues with different "ts_reserveDemand" values.

Renaming "df_nReserves" to "df_reserves", changing "mft_nReserves" to "ft_reservesFixed", as well as a lot of accompanying changes.

Activating two equations in the schedule model and adding the dummy capacity to ensure capacity margin equation feasibility to the results file.

Changing results_t_start to t_initializationPeriod (=the number of time steps in the beginning of the simulation that are solved but not included in the results) and t_omitTrajectories to t_trajectoryHorizon (the number of time steps when start-up and shutdown trajectory constraints are 'active' in the beginning of each solution).

Changed 'ts_nodeState' to 'ts_node' for clarification (since penalty time series should also be implemented, which does not refer to the node state)

* taking investment costs into account in cost results calculation
* adding transfer link investment possibility sets
* moving run-up and shutdown trajectories into their own 'blocks' to speed up the model
* commenting out some forecast related sets that are not used anymore
* updating info file writing

Changing the way reserves are treated. An additional penalty variable vq_resMissing can now be used to mitigate lack of reserves after gate closure while the former vq_resDemand is used only for the later time periods. This allows to fix reserves for the time periods between gate closure and reserve update-frequency. In this way problems arising from the forecast errors (VG cannot do what promised) can be mitigated by the vq_resMissing and it is then visible separately from the vq_resDemand (and they can have different penalty values). Released tertiary reserves cannot now be used to mitigate primary and secondary reserves - this could be re-implemented as an option if seen beneficial (and of course in a reserve type agnostic manner).

Added fixed operation and maintenance costs for investment options
Adding a new parameter unitOutputCapacityTotal to avoid division by zero
Added unit investment result parameter
Removed equation q_fixedGenCap1U
Added default value calculation for reserves update frequency
Moved tCounter update outside ms loop in 3c_periodicLoop.gms
Updated the limits of v_invest_LP and v_invest_MIP (no more maxGenCap, minGenCap)
Updated investInit_temp.gms
And some smaller updates

Continuing to fix the reserves in the deterministic mode. Now they should also work after the first solve.