Update NEWS

NEWS.md

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  * Added `fetchLDM()` function to access Kellogg Soil Survey Lab Data Mart via Soil Data Access or local SQLite snapshot (https://github.com/ncss-tech/soilDB/pull/243)
  * Added `get_SDA_metrics()` for accessing usage metrics for Soil Data Access, Web Soil Survey and the Lab Data Mart. Thanks to Jason Nemecek for submitting the base SQL query
  * `get_SDA_interpretation(method = "dominant condition")` now includes `total_comppct_*` columns reflecting the summed component percentage of the dominant condition 
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+ * Updated metadata for SCAN sites that were missing `pedlabsampnum` (KSSL Pedon Sample ID)
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 # soilDB 2.6.14 (2022-03-15)
  * `waterYearDay()` bug fix for more specific (sub-daily) date-time formats
  * `fetchSCAN()` better handling of empty results in multi-site queries