[split] Move beloglazov theme to oh-my-fish/theme-beloglazov

https://github.com/oh-my-fish/theme-beloglazov

themes/beloglazov/README.md

-##  beloglazov
-
-A theme based on the default robbyrussell theme. This theme adds time, the
-number of non-pushed commits, and whether the previous command has failed.
-
-![beloglazov-fish-theme](https://raw.github.com/beloglazov/oh-my-fish/master/themes/beloglazov/beloglazov-fish-theme.png)
-
-
-#### Characteristics
-
-* Displays git information in the command prompt when available
-* Displays the number of non-pushed git commits
-* Displays the current time
-* Displays ✘ if the previous command failed

themes/beloglazov/fish_prompt.fish

-# name: beloglazov
-
-function _git_branch_name
-  echo (command git symbolic-ref HEAD ^/dev/null | sed -e 's|^refs/heads/||')
-end
-
-function _is_git_dirty
-  echo (command git status -s --ignore-submodules=dirty ^/dev/null)
-end
-
-function _git_ahead_count -a branch_name
-  echo (command git log origin/$branch_name..HEAD ^/dev/null | \
-    grep '^commit' | wc -l | tr -d ' ')
-end
-
-function fish_prompt
-  set -l last_status $status
-
-  set -l cyan (set_color -o cyan)
-  set -l yellow (set_color -o yellow)
-  set -l green (set_color green)
-  set -l red (set_color red)
-  set -l brightred (set_color -o red)
-  set -l blue (set_color -o blue)
-  set -l normal (set_color normal)
-
-  if [ $last_status != 0 ]
-    set failed "$brightred✘$normal "
-  end
-
-  if [ 'root' = (whoami) ]
-    set arrow "$brightred➜$normal  "
-  else
-    set arrow ''
-  end
-
-  set -l time $red(date '+%I:%M')$normal
-  set -l cwd $cyan(basename (prompt_pwd))$normal
-
-  if [ (_git_branch_name) ]
-    set -l git_branch_name (_git_branch_name)
-    set -l git_branch $brightred$git_branch_name$normal
-    set git_info "$blue ($git_branch$blue)$normal"
-    set -l git_ahead_count (_git_ahead_count $git_branch_name)
-
-    if [ $git_ahead_count != 0 ]
-      set -l ahead_count "$green+$git_ahead_count$normal"
-      set git_info "$git_info $ahead_count"
-    end
-
-    if [ (_is_git_dirty) ]
-      set -l dirty "$yellow ✗$normal"
-      set git_info "$git_info$dirty"
-    end
-  end
-
-  echo -n -s $failed $arrow $time ' ' $cwd $git_info $normal ' '
-
-end