pgAdmin 4 commit: Port Cast node to react. Fixes #6566.

Port Cast node to react. Fixes #6566.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=c94fc73c11390ad917f4a17685bcb8ff5b679239
Author: Pradip Parkale <pradip.parkale@enterprisedb.com>

Modified Files
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.../servers/databases/casts/static/js/cast.js      | 259 +++------------------
.../servers/databases/casts/static/js/cast.ui.js   | 193 +++++++++++++++
.../casts/templates/casts/sql/default/create.sql   |   6 +-
.../javascript/schema_ui_files/cast.ui.spec.js     | 112 +++++++++
4 files changed, 346 insertions(+), 224 deletions(-)