fix warnings for REMIND inputdata generation

[fbenke-pik]

This PR fixes a few warnings produced when generating the REMIND inputdata.

• remove renaming messages when reading in excel files by setting .name_repair = "unique_quiet"
• suppress warnings when converting data frame columns to numeric (NAs introduced)
• set verbosity to lowest when calling toolCountryFill
• remove some regions that cannot be converted by toolCountryFill and toolCountry2isocode and will be dropped anyways
• set warnNA = FALSE when calling calcOutput
• explicitly set no_remove_warning to affected countries when calling toolCountryFill
• explicitly set by argument in joins

validation on the cluster

madrat::compareData("/p/projects/rd3mod/inputdata/output/rev6.75falk-before_2b1450bc_remind.tgz",
                    "/p/projects/rd3mod/inputdata/output/rev6.75falk-compare_2b1450bc_remind.tgz")

madrat::compareData("/p/projects/rd3mod/inputdata/output/rev6.75falk-before_62eff8f7_remind.tgz",
                    "/p/projects/rd3mod/inputdata/output/rev6.75falk-compare_62eff8f7_remind.tgz")

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 34 lines in your changes are missing coverage. Please review.

Project coverage is 0.11%. Comparing base (d2e1108) to head (b458459).

Files	Patch %	Lines
R/calcMacBaseLandUse.R	0.00%	19 Missing ⚠️
R/convertMAgPIE.R	0.00%	4 Missing ⚠️
R/convertEEA_EuropeanEnvironmentAgency.R	0.00%	3 Missing ⚠️
R/readEEA_EuropeanEnvironmentAgency.R	0.00%	3 Missing ⚠️
R/convertEDGAR8.R	0.00%	2 Missing ⚠️
R/convertEU_ReferenceScenario.R	0.00%	2 Missing ⚠️
R/convertEDGAR.R	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##           master    #109      +/-   ##
=========================================
- Coverage    0.11%   0.11%   -0.01%     
=========================================
  Files         316     316              
  Lines       17394   17397       +3     
=========================================
  Hits           20      20              
- Misses      17374   17377       +3     

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