Post review edits

[ehwenk]

Structural changes:

• removing all mapping to OWL classes
• indicating that matches to databases, thesauruses without actually resolvable identifies are examples not skos:exactMatch, etc.
• adding all SWEET sub-namespaces to namespace declaration
• in APD_traits_input.csv, collapsing multiple columns (e.g. measured_structure_1, measured_structure_2, etc.) into a single ;-delimited column; this allows an undefined number of values for each field
• corresponding changes made to R-scripts to build rdf representations, website from the new csv format

Create using_the_APD.qmd

• creating a document with sample code to explore/use the APD

Minor changes to traits:

• adding many additional mapping to Plant Trait Ontology, Crop Ontology
• adding 3 new traits (bud_length, bud_width, buds_per_inflorescence)
• edits to plant_growth form and woodiness, based on review of Complete Traits manuscript
• incorporate suggested changes from @reykt (#24, #25)