pgAdmin 4 commit: Show the login roles that are members of a group role

Show the login roles that are members of a group role be shown when examining a group role. Fixes #5404

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=7bad4ca53561ab9a2a5adb56a74a06c59dc3b1ae
Author: Nikhil Mohite <nikhil(dot)mohite(at)enterprisedb(dot)com>

Modified Files
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docs/en_US/images/role_membership.png | Bin 47494 -> 81484 bytes
docs/en_US/release_notes_5_1.rst | 1 +
docs/en_US/role_dialog.rst | 10 +-
.../server_groups/servers/roles/__init__.py | 116 ++++++++++++++++++++-
.../server_groups/servers/roles/static/js/role.js | 46 ++++++--
.../templates/roles/sql/9.1_plus/properties.sql | 9 ++
.../roles/templates/roles/sql/9.1_plus/update.sql | 12 +++
.../templates/roles/sql/9.4_plus/properties.sql | 9 ++
.../roles/templates/roles/sql/9.4_plus/update.sql | 12 +++
web/pgadmin/static/scss/_select2.overrides.scss | 3 +-
.../static/scss/resources/_default.variables.scss | 2 +
.../scss/resources/dark/_theme.variables.scss | 2 +
.../resources/high_contrast/_theme.variables.scss | 2 +
13 files changed, 209 insertions(+), 15 deletions(-)