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Finds next power-of-2. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:
This is part of package extra-integer.
integer.nextPow2(x);
// x: an int32
const integer = require("extra-integer");
integer.nextPow2(63);
// 64
integer.nextPow2(128);
// 128
integer.nextPow2(1);
// 1