Add v8-compile-cache to make faster startup

[yhatt]

Make CLI be faster by adding v8-compile-cache that attaches the require hook for using V8 code cache.

Benchmark of time ./marp-cli.js in my environments shows not dramatic but steady x1.15 speed up. (Use average time of 10 executions)

real	Mac	Win
master	0.671s	0.960s
v8-compile-cache	0.585s (x1.15)	0.843s (x1.14)