metatask 1.0.0

# Meta Task

Tools that support:
- Runs commands on a set of files
- Multi process the for fast run
- Read metadata from the file with exiftool
- Use metadata in rename or command
- Set metadata on the file
- Support jinja template
- Rename or move the file

Config file `<Standard config path>/metatask.yaml`, `~/.config/metatask.yaml` on Linux

Syntax:
```yaml
nb_process: <number of concurent process>

ignore_dir: <list of directory regexpto be ignored>

task:
<name>:
display: <text>
source-mime: <mime type>
merge: <True|False, use to combine files, defaut is False>
keep: <True|False, uset to keep the source file, default is False>
commands: [<list of commands or command names>]

cmds:
<name>:
display: <text>
metadata: True # => get some metadata with `exiftool` and can be used with python format syntax
...
<name>:
display: <text>
cmd: <the command with {in} and {out} (if not inplace)>
out_ext: <the output extension (optional)>
inplace: <True|False default is False>
<name>:
display: <text>
type: rename
from: <regexp>
to: <pattern with \1, ...>
<name>:
display: <text>
type: rename
do:
- from: <regexp>
to: <pattern with \1, ...>
<name>:
display: <text>
type: rename
from: <regexp>
format: <lower|higher>
<name>:
display: <text>
type: metadata
name: <metadata name>
value_get: <regexp used on filename>
value_format: <pattern with \1, ...>
```