[Eva] Renames partitioning_annots into eva_annotations.

Makefile

headers/header_spec.txt

src/plugins/value/partitioning/partitioning_parameters.ml

src/plugins/value/partitioning/per_stmt_slevel.ml

src/plugins/value/utils/eva_annotations.ml

src/plugins/value/utils/eva_annotations.mli

src/plugins/value/utils/value_util.ml