Peodd

**New features:**

* Add support for poetry extras (3)\
This feature adds support for exporting poetry extras. The extras
dependency will have a dictionary with the version number. The name
and version is extracted and is written to the file.

**Feature changes:**

* Change the way how peodd handles unsupported dependency format\
Earlier, peodd used to skip any dependency if it is not supported.
This is changed and now it raises an exception saying the format is
not supported and stops the program.

**New features:**

* Add support for exporting non-dev dependencies\
Add possibility to export only non-dev dependencies to a txt file with
the `--non-dev` flag, and remove the default filename, forcing the
user to provide one with the `-o`, `--output` flag. Usage: $ peodd
--non-dev -o requirements.txt

**Bug fixes:**

* Skip export of git url dependency\
The exporting of git url dependency is not supported yet. This is
causing TypeError Exception. This change adds a condition to skip it,
avoiding the exception.

**Bug fixes:**

* Fix bug related to version conditions\
The version conditions had a bug which caused errors converting the
`bar = ">=1.2.2"` type of dependency. This fixes the bug by using the
version instead of v key.

**Performance improvements:**

* Use tomli instead of tomlkit\
tomli is 14x as fast as tomlkit. This change replaces existing tomlkit
code with the tomli methods. It also adds a condition to validate the
pyproject.toml file.

**New features:**

* Add script for exporting poetry dev-dependencies to a txt file\
Poetry has an option to export the dependencies to a txt file. If you
need the dev dependencies too, then you need add `dev` flag with the
export command. But, there is no support to export only the dev-
dependencies. This script is a workaround & quick-solution to this
problem. It can export the dev-dependencies to a requirements-dev.txt
file. Usage: $ peodd -o requirements-dev.txt