Log Message:
sysutils/broot: update to 1.5.0

-new auto_exec verb property: a non-auto_exec verb isn't executed directly on a
keyboard shortcut but fills the input so that it may be edited before execution
on enter key.
-add support for backtab key (by default it's bound to :previous_match).
-:rename built-in verb, best used with its keyboard shortcut F2.
-new standard verb arguments: {file-stem}, {file-extension}, and \ 
{file-dot-extension},
-new :toggle_second_tree internal - Fix #388.
-total size of staging area computed and displayed if sizes displayed elsewhere.
-new file_sum_threads_count conf property to define the number of threads used
for file summing (size, count, last modified). The goal is to more easily
search what's the best value depending on the cpu, OS and disk type/speed.
-:input_clear internal - Fix #24.