fix(OpMsg): cap requestIds at 0x7fffffff
fix(OpMsg): cap requestIds at 0x7fffffff

Since OpMsg uses buffer write methods, these methods can throw if the buffer
attempts to write a number to large for the space. We now cap the requestId
at 0x7fffffff and loop back around to 0

Fixes NODE-2067

mongodb/node-mongodb-native,mongodb/node-mongodb-native,mongodb/node-mongodb-native,mongodb/node-mongodb-native