feat(mercurial): add `hg log` aliases (#9979)

Co-authored-by: Michał Kielan <kielanm@fb.com>

plugins/mercurial/README.md

@@ -30,7 +30,8 @@ plugins=(... mercurial)
 | `hgl`  | `hg pull -u`                                                                                                |
 | `hglr` | `hg pull --rebase`                                                                                          |
 | `hgo`  | `hg outgoing`                                                                                               |
-
+| `hglg` | `hg log --stat -v`                                                                                          |
+| `hglgp`| `hg log --stat -p -v`                                                                                       |
 ## Prompt usage
 
 - Switch to a theme which uses `hg_prompt_info`

plugins/mercurial/mercurial.plugin.zsh

@@ -17,6 +17,8 @@ alias hgi='hg incoming'
 alias hgl='hg pull -u'
 alias hglr='hg pull --rebase'
 alias hgo='hg outgoing'
+alias hglg='hg log --stat -v'
+alias hglgp='hg log --stat  -p -v'
 
 function in_hg() {
   if $(hg branch > /dev/null 2>&1); then