Make weather class and fix test XML

[nllong]

• Make a weather_data_fetcher class for testing
• Fix the XML to be the correct format. The main issue is that the timestamps were not contiguous, they went from 2022-12 to 2022-01, instead of 2022-12 to 2023-01. This might just be an ordering issue on writing out the values.

see c2a220f#diff-6c40cc6729b8e63472133cbd4dea203250af8e30877087f6b25170c15e823eebR73, you don't need to fix the IntervalFrequency and you don't really need the EndTimeStamp.

You don't need to pull in these changes to run the latest bsyncr-server, fixing the XML output from SEED should suffice.

[Copilot]

Pull Request Overview

This PR introduces a new weather_data_fetcher class to encapsulate weather data retrieval from NOAA and updates associated tests and XML examples to ensure correct data handling. Key changes include:

• Adding the weather_data_fetcher R6 class in R/weather_data_fetcher.R.
• Updating tests in tests/ to validate the new weather_data_fetcher functionality and ensuring proper XML format in test data.
• Refactoring utility functions in R/bsync_utils.R and updating documentation and configuration files.

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/test_weather_data_fetcher.R	Added tests for verifying weather_data_fetcher behavior and error conditions.
tests/test_bsyncr.R	Introduced an additional test case for dataframe creation using the new XML file.
tests/data/ex_bsync_2.xml	Updated the test XML to the correct format.
tests/bsyncr_example.Rmd	Revised example Rmd to reference ex_bsync_2.xml and integrate weather_data_fetcher usage.
cspell.json	Updated spelling dictionary entries for new terms.
README.md	Modified installation instructions to include custom CRAN repo for styler.
R/weather_data_fetcher.R	Added the weather_data_fetcher class to fetch and process weather data using rnoaa functions.
R/bsync_utils.R	Refactored XML parsing to utilize weather_data_fetcher for retrieving weather data.
NAMESPACE	Adjusted exports accordingly.
.lintr	Created new linter configuration for consistent style rules.