Terminal: support multiple lines and make it re-invokeable (#6599)
Terminal: support multiple lines and make it re-invokeable (#6599)

With this changes you can enter multiple lines with commands and after viewing the output you can re-invoke the terminal with a button
Hzj-jie/koreader,koreader/koreader,Markismus/koreader,mwoz123/koreader,NiLuJe/koreader,koreader/koreader,Frenzie/koreader,poire-z/koreader,poire-z/koreader,Frenzie/koreader,pazos/koreader,NiLuJe/koreader