Add support for the Current Time Service

[Supereg]

Add support for the Current Time Service

♻️ Current situation & Problem

The current time service is expoed by peripherals that have a sense of time (e.g., to display to the user or to, e.g., include the current timestamp within measurements). For example, Omron blood pressure cuffs implement the Current Time Service with a writeable Current Time characteristic. Only if you write to the peripherals current time, it would be able to include the timestamp of a blood pressure measurement.

⚙️ Release Notes

• Add initial support for the Current Time Service
• Add CurrentTime characteristic.
• Add ExactTime256 characteristic.
• Add DayDateTime characteristic.
• Add DayOfWeek characteristic.

📚 Documentation

DocC bundle structure was updated to reflect these latest changes.

✅ Testing

Unit tests were added for new functionality.

📝 Code of Conduct & Contributing Guidelines

By submitting creating this pull request, you agree to follow our Code of Conduct and Contributing Guidelines:

• I agree to follow the Code of Conduct and Contributing Guidelines.

[PSchmiedmayer]

Amazing; thank you @Supereg!

[codecov]

Codecov Report

Attention: Patch coverage is 90.04975% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 76.76%. Comparing base (4b193cd) to head (1097255).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #28      +/-   ##
==========================================
+ Coverage   76.71%   76.76%   +0.05%     
==========================================
  Files          79       84       +5     
  Lines        4096     4297     +201     
==========================================
+ Hits         3142     3298     +156     
- Misses        954      999      +45     

Files	Coverage Δ
...es/BluetoothServices/Services/BatteryService.swift	100.00% <ø> (ø)
...etoothServices/Services/BloodPressureService.swift	100.00% <ø> (ø)
...luetoothServices/Services/CurrentTimeService.swift	100.00% <100.00%> (ø)
...toothServices/Characteristics/Time/DayOfWeek.swift	91.67% <91.67%> (ø)
...othServices/Characteristics/Time/CurrentTime.swift	92.86% <92.86%> (ø)
...etoothServices/Characteristics/Time/DateTime.swift	92.86% <91.12%> (ø)
...othServices/Characteristics/Time/DayDateTime.swift	92.86% <92.86%> (ø)
...thServices/Characteristics/Time/ExactTime256.swift	84.75% <84.75%> (ø)

... and 3 files with indirect coverage changes

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