pgAdmin 4 commit: Fixed below review comments

Fixed below review comments
- Removed the "lineWrapping" option from the codemirror textarea because
it was creating issue in the code folding.
- Handle the values while depositing during debugging.
- Properly handle the Array values while saving it to sqlite database
and displayed in input dialog.
- SQL code folding was not supported in codemirror so added the same.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=149c59aa4fc8a01c9211662f8c16a7cc099f41fc
Author: Neel Patel <neel(dot)patel(at)enterprisedb(dot)com>

Modified Files
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web/pgadmin/static/js/backgrid/backgrid.pgadmin.js | 6 +-
.../codemirror/addon/fold/pgadmin-sqlfoldcode.js | 83 ++++++++++++++++++++++
web/pgadmin/tools/debugger/__init__.py | 76 ++++++++++++--------
web/pgadmin/tools/debugger/static/css/debugger.css | 31 +++++++-
.../debugger/templates/debugger/js/debugger_ui.js | 36 ++++++++--
.../tools/debugger/templates/debugger/js/direct.js | 80 +++++++++++++--------
.../templates/debugger/sql/execute_edbspl.sql | 6 +-
.../templates/debugger/sql/execute_plpgsql.sql | 4 +-
8 files changed, 248 insertions(+), 74 deletions(-)