Add automatic regional proxy generation to RECC

When applying the RECC model at higher geographical resolution than for the standard setup, a number of parameters (ca. 20 for vehicles and ca. 60 for buildings), which have a region aspect, need to be updated. For some, like region-specific future stocks, this means that the model parameters have to be re-compiled at the higher resolution level. For others, the aggregate regional value will be a sufficiently accurate or plausible proxy.

How do do this refinement without too much unnecessary work? Will implement the following proposal/plan in June 2023:

incude two region aspects, R and r: focus (high resolution for study) and background (standard dataset for 20 world regoins/countries)
each of the two region aspects comes with an own region list (classification), with a correspondence table between them (data type 7CT_...)
Coding of proxy choices: each parameter with a region aspect gets a proxy instruction in config file, with three options on where to get the high-resolution region data from: (a): Actual data present, (b): use aggregate-level proxy as is, (c), scale down aggregate-level proxy with 2P... population data. For (a), the paramter has region aspect R, and for b and c, the aspect is r.
For all parameters with region aspect r (proxy options b and c): Re-calc and re-assign all parameter values for the regional aspect R, using the Einstein sum command string 'abcr,rR, abcR', where rR is the proxy assignment matrix from the aggregate to the detailed aspects, r->R.

IndEcol / RECC-ODYM

Add automatic regional proxy generation to RECC #51