Description

This PR forks diag graph setting directory from awf.

Related links

part of autowarefoundation#1221

Tests performed

psim

Notes for reviewers

Interface changes

Effects on system behavior

$(find-pkg-share autoware_launch)/config/system/diagnostics/ is used in awf
$(find-pkg-share autoware_launch)/config/system/tier4_diagnostics/ is used in tier4

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