runtime(netrw): runtime(netrw): upstream snapshot of v178

runtime(netrw): runtime(netrw): upstream snapshot of v178

relevant commits:
- refactor: netrw#own#Deprecate -> netrw#msg#Deprecate
- refactor: netrw#own#PathJoin -> netrw#fs#PathJoin
- fix: typos
- refactor: netrw#own#Open -> netrw#os#Open
- deprecate!: netrw#WinPath
- refactor: netrw#WinPath -> netrw#fs module
- refactor: s:ShellEscape -> netrw#os module
- refactor: s:NetrwExe -> netrw#os module
- refactor: s:NetrwGlob -> netrw#fs module
- refactor: s:NetrwGetcwd -> netrw#fs module
- refactor: s:NetrwFullPath -> netrw#fs module
- refactor: s:ComposePath -> netrw#fs module

closes: #16718

Signed-off-by: Luca Saccarola <github.e41mv@aleeas.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>