* make lidgren use spans everywhere where it can
convert custom pooling to shared array pool impl
add unit tests for read/write
add native socket extensions to socket so we can legit pass spans for SendTo/ReceiveFrom
bump version in lidgren csproj
replace some random "% 8" w/ "& 7"
more minor nullability hacks to fix static analysis complaints
made receiving packets use span
minor native sockets refactor to use pinvoke
add read/write constrained/prealloc'd bit stream impl to lidgren and update usages
fixed missing stream cleanup
remove outstanding stream cleanup since it refs buffer thru the class, can't read some other buf
apply suggestions from code review
remove unsafe cruft
* add tests to gh actions
* make stats use interpolation in tostring and remove m_bytesAllocated since it's all in the shared pool now
* this pr still open so fuck it
stats, human readability, faster BitsToHold methods
* add api compatible version of ReadBytes
* rename ReadOnlyStreamWrapper -> ReadOnlyWrapperStream
rename WriteOnlyStreamWrapper -> WriteOnlyWrapperStream
add AppendViaStream, AppenderStream impl
add and update documentation on read/write bytes methods
also fix some goofs
