In-depth "data use" vignette from ESA workshop code along

[clnsmth]

"Data use" is one of two ecocomDP workflow types.

We do have a general "data use" vignette highlighting the major functionality, but don't yet have an in-depth vignette demonstrating the use of multiple datasets.

The "code along" portion of the 2022 ESA workshop, "Explore and work with harmonized continental-scale biodiversity data from NEON and the US LTER", provides a nice introduction to working with multiple ecocomDP datasets. Content beginning at the "Using ecocomDP" section seems most relevant for a "data use" vignette, and we could include the proceeding sections in a "data create" vignette to highlight processing behind NEON L0-to-L1 conversions if we think that's important.

@sokole?