Feat/yuanrui/json

[zhang-yuanrui]

Error checking newly added in this PR includes:

1. JSON decode error: the input file does not follow the correct format.
2. If template ID following the naming convention, like, "Template_0", so is the naming under "parent" and "children" entries.
3. If the number of keys (missing keys) and key names match the schema.
4. If the "report_type" falls in the given number of types.
5. If "item_filter" follows the given rule.

Error handling and feedback:
Once the error happens, a prompt will pop up providing the detailed information to help the user understand what happens and debug.

Known but not done yet in this PR:
Check 'sort_selection' and 'params' - lack of necessary requirements

Edit:
Added 2 new features per comments and requests:

1. Drop "date".
2. Add an optional logger parameter to "load_templates" method.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 93.87755% with 6 lines in your changes missing coverage. Please review.

Project coverage is 60.82%. Comparing base (b0b1a61) to head (195ed03).

Files with missing lines	Patch %	Lines
...ynamicreporting/core/utils/report_remote_server.py	93.81%	1 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #213      +/-   ##
==========================================
+ Coverage   60.54%   60.82%   +0.27%     
==========================================
  Files          22       22              
  Lines        6702     6751      +49     
  Branches     1280     1297      +17     
==========================================
+ Hits         4058     4106      +48     
  Misses       2269     2269              
- Partials      375      376       +1     

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[margalva]

See comments. Thank you.