cmd/dlv,_scripts: move things that use x/tools/go/packages to new repo
Move things that depend on golang.org/x/tools/go/packages to a new repository so that they can use the latest version of that package without forcing delve itself to need the latest version of Go.
Needs https://github.com/go-delve/build-tools/pull/1
Other PR was merged.
We changed things in delve so now the changes need to be ported to build-tools: https://github.com/go-delve/build-tools/pull/2
It should be ok to merge now. For the 1.25 failures in teamcity see https://github.com/go-delve/delve/pull/4089
Needs https://github.com/go-delve/build-tools/pull/3
Merged