wc list all write changes

Usage: wc[ir+-*?] # NOTE: Uses io.cache=true

• wc[j] list all write changes
• wc- [from] [to] remove write op at curseek or given addr
• wc+ [addr] commit change from cache to io
• wc* "" in radare commands
• wcr reset all write changes in cache
• wci commit write cache
• wcp [fd] list all cached write-operations on p-layer for specified fd or current fd
• wcp* [fd] list all cached write-operations on p-layer in radare commands
• wcpi [fd] commit and invalidate pcache for specified fd or current fd