This PR moves the declaration of each quantity type to the module/file where the units for that quantity is declared. This makes each such module self-sufficent instead of spreading the declarations in two files.
Coverage increased (+0.3%) to 52.757% when pulling 95ae76da6d2bef488899f7b80679b002acd5da8f on refactor/move-quantity-types-to-modules into 34999597473401463843ed38e00cfe964ad6ce9a on master.
This PR moves the declaration of each quantity type to the module/file where the units for that quantity is declared. This makes each such module self-sufficent instead of spreading the declarations in two files.