new input data rev6.84 and CES parameter for SSP2, SSP2_EU21, SSP1, SDP_MC, SDP_EI, SDP_RC, SSP2_lowEn, SSP5

[LaviniaBaumstark]

Purpose of this PR

• new input data rev6.84
• new CES parameter and gdx files for intput data rev6.84 and with new default diffLin2Lin for NPi for SSP2, SSP2_EU21, SSP1, SDP_MC, SDP_EI, SDP_RC, SSP2_lowEn and SSP5,
• calibration runs: /p/tmp/lavinia/REMIND/REMIND_calibration_2024_07_23/remind/output

Type of change

• Minor change (default scenarios show only small differences)

Checklist:

• My code follows the coding etiquette
• I performed a self-review of my own code
• I explained my changes within the PR, particularly in hard-to-understand areas
• All automated model tests pass (FAIL 0 in the output of make test)
• The changelog CHANGELOG.md has been updated correctly

Further information (optional):

• Test runs are here:
• Comparison of results (what changes by this PR?):