Update docs

- Create extra material/whatsnew for materials versioning
- Update material/index
- Update whatsnew
- Update technology.yaml of MESSAGEix-Materials

Author: macflo8

doc/material/whatsnew.rst

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+.. _whatsnew_0100:
+
+Version 1.1.0 (August 27, 2024)
+----------------------------------
+
+{{ header }}
+
+
+This is a release from MESSAGEix-Materials 1.0.0 and includes model additions and enhancements.
+There are also a few of changes in the command line interface.
+
+Model changes
+~~~~~~~~~~~~~~~~~~~~~~~~~
+**Iron & steel sector**
+This release introduces the following decarbonization technologies:
+
+- (list technologies here)
+
+Shared input data file :file:`Global_steel_cement_MESSAGE.xlsx` has been separated for steel and cement data.
+
+**Non metallic minerals sector**
+
+Shared input data file has been separated for steel and cement data.
+
+CCS addon reformulated to prohibit wet CCS addon on dry clinker kiln and vice versa.
+
+**Non ferrous metals sector**
+
+Global trade of aluminum calibrated according to IAI MFA model.
+
+**Power sector**
+
+Material intensity of hydro power plants updated (reference?)
+
+**Demand generator**
+
+GDP and population projections are read from scenarios by default.
+If the data is not available, default projections are used.
+
+**Other**
+
+MESSAGEix-Materials can be built on the message-ix-models bare model now.
+Convenience function :func:`data_util.calculate_ini_new_cap` to calculate ``initial_new_capacity_up/lo`` based on demand parameter.
+
+
+
+CLI changes
+~~~~~~~~~~~
+
+The :func:`build_scen` command uses the ``mix-models`` CLI parameter ``--nodes`` now.
+Currently ``R12`` is the only supported option.
+
+
+Depreciations
+~~~~~~~~~~~
+The ``material-ix`` commands ``add-buildings-ts``, ``report-2`` and ``create-bare`` have been removed.
+
+New features
+~~~~~~~~~~~~
+
+**Bug Fixes**
+
+
+**Compatibility**