Increased KCP Fragments

[JesusLuvsYooh]

Credits to the top-men / advisors and the big guy himself.

We do get people trying to send large mb maps, or 4k HD camera footage (in Update() ) in hashtag help, so its for those rare few, + future proofing.

[miwarnec]

looks good, just need one 70 MB send test to be sure.
needs different window sizes in test settings tho, I can add it later

[miwarnec]

for future reference.
70mb sending did not seem to work atm.
worth considering keeping the old limit possibly

[JesusLuvsYooh]

Old limit was 288 kb right?
I can get 10,000 kb to work with the above changes, before unity, kcp or my hardware disagrees with it.
Its a massive difference, even if we cant reach the 70,000 kb we'd hoped.

I'l ask in the Discord for opinions.

[miwarnec]

not merged yet, sorry.
considering NetworkReader/Writer fixed capacity pooling.
where we would always pool max sized readers/writers.
in which case the 144 KB max is quite nice.
int.max nice would not be so ni ce