Stg daily add

[edwardxtg]

Description

Please explain the changes you made here.

Checklist

• Dependencies install correctly in a clean environment and code executes;
• Test coverage extended; created tests fail without the change (if possible);
• All tests passing;
• Commits follow a type convention (e.g. https://gist.github.com/brianclements/841ea7bffdb01346392c#type);
• Extended the README, documentation and/or docstrings, if necessary;

[notion-workspace]

TZ-OSEMOSYS: Add daily balancing for storage

[djwels]

• Tested on larger model (1 node Philippines)
• storage_balance_day (when tagged to true) is leading to errors in construction
• Suggest going back to commit from yesterday where constraint was working and we can go from there?

[djwels]

• Tested in both smaller python test scripts and in larger models
• Both annual and daily balancing behaving as expected i.e. balancing across the daily time brackets for daily = true and across each year for annual = true