BAAS-32412: add nil check in mem usage for key and item in builtin_set (

mongodb-forks#124)

BAAS-11692: add mem usage for setObject and func objects (mongodb-for…

…ks#121)

BAAS-22176: add mem usage estimation for map objects + add configurab…

…le sample rate (mongodb-forks#120)

BAAS-22177: add mem usage estimate for sparse arrays (mongodb-forks#119)

BAAS-29742: remove legacy mem usage (mongodb-forks#118)

BAAS-24348: estimate mem usage for gomap and goslice when over thresh…

…olds (mongodb-forks#110)

BAAS-18673: add support for float in Sets (mongodb-forks#111)

BAAS-27268: add early exit in mem usage where possible (mongodb-forks…

…#109)

BAAS-23857: apply new mem usage everyhere but objectGoSlice and objec…

…tGoMapSimple (mongodb-forks#99)

BAAS-23396: account for nil desc in Symbol MemUsage (mongodb-forks#93)