vcs: Rename from git to support multiple vcs

.dotter/global.toml

@@ -4,7 +4,7 @@
 #       a development environment based on git and nvim.
 
 [base]
-depends = ["shell", "git", "nvim", "scripts", "ssh", "terminal", "bootstrap"]
+depends = ["shell", "vcs", "nvim", "scripts", "ssh", "terminal", "bootstrap"]
 
 [bootstrap.files]
 "bootstrap/dotlink.sh" = "~/.config/sh/alias.d/dotlink.sh"
@@ -13,9 +13,9 @@ depends = ["shell", "git", "nvim", "scripts", "ssh", "terminal", "bootstrap"]
 "sh/README.md" = { target = "~/NOWHERE", type = "symbolic", if = "false" }
 sh = "~"
 
-[git.files]
-"git/README.md" = { target = "~/NOWHERE", type = "symbolic", if = "false" }
-git = "~"
+[vcs.files]
+"vcs/README.md" = { target = "~/NOWHERE", type = "symbolic", if = "false" }
+vcs = "~"
 
 [nvim.files]
 "nvim/.config/nvim/spell/de.utf-8.add.spl" = { target = "~/.config/nvim/spell/de.utf-8.add.spl", type = "symbolic" }