Rename old "larva" files

renamed:    iimg/lvimg.go -> iimg/iimg.go
renamed:    imfg/lvmfg.go -> imfg/imfg.go

"lv" was short for larva (this tool's previous name).  Now that the tool
is called imgmod, replace "lv" with "i".
2 files changed
tree: fd406da32ae934524296b4148fb32614f6a5e9f1
  1. cli/
  2. iimg/
  3. imfg/
  4. go.mod
  5. go.sum
  6. imgmod.go