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A couple of bug fixes to #107, according to suggestions in #107 (comment 14595)

Re-implementing dynamic generation portfolios (see issue #119). Unit investment variables still have the 't' dimension, although it is kind of redundant. Units have technical lifetimes (given in ut set) but links are assumed to stay in the system forever after they have been built. Cost discounting and multi-year horizons are considered in the objective function but not in the results outputting yet.

First working commit for the new inputs and outputs system. Probably buggy... In Google Drive there is 8unit system excel that works with this (vInputOutput.xlsx).

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

Adding the grid dimension to the reserve parameters and variables. Changes required to the input files. Removing the obsolete nuft set. Issue #69.

First tests, disabling all reserve requirement constraints except q_resDemand. Adding some new parameters and sets (df_reservesGroup, restypeDirectionGroup, restypeDirectionGridNodeGroup) and changing the dimensions of some other parameters, sets and variables.

#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.