Add MANIFEST.in file to fix source distribution

[AbbyGi]

Description:

We were updating CI for the NSLS-II PDF profile_collection repo and discovered an issue:

Traceback (most recent call last):
  File "/home/vsts/miniconda/envs/collection-2021-1.0/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 3418, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-1-6bc5b1fc0a66>", line 11, in <module>
    ip.parent._exec_file(f)
  File "/home/vsts/miniconda/envs/collection-2021-1.0/lib/python3.7/site-packages/IPython/core/shellapp.py", line 380, in _exec_file
    raise_exceptions=True)
  File "/home/vsts/miniconda/envs/collection-2021-1.0/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 2742, in safe_execfile
    self.compile if shell_futures else None)
  File "/home/vsts/miniconda/envs/collection-2021-1.0/lib/python3.7/site-packages/IPython/utils/py3compat.py", line 168, in execfile
    exec(compiler(f.read(), fname, 'exec'), glob, loc)
  File "/home/vsts/work/1/s/startup/94-load.py", line 17, in <module>
    from xpdacq.xpdacq_conf import (glbl_dict, configure_device,
  File "/home/vsts/miniconda/envs/collection-2021-1.0/lib/python3.7/site-packages/xpdacq/xpdacq_conf.py", line 27, in <module>
    from xpdconf.conf import glbl_dict, GLBL_YAML_PATH
  File "/home/vsts/miniconda/envs/collection-2021-1.0/lib/python3.7/site-packages/xpdconf/conf.py", line 65, in <module>
    glbl_dict = lookup_config()
  File "/home/vsts/miniconda/envs/collection-2021-1.0/lib/python3.7/site-packages/xpdconf/conf.py", line 59, in lookup_config
    with open(sim_config_path) as f:
FileNotFoundError: [Errno 2] No such file or directory: '/home/vsts/miniconda/envs/collection-2021-1.0/lib/python3.7/site-packages/xpdconf/examples/sim.yaml'

See this link for more details:
NSLS2/pdf-profile-collection#24

This pull request adds a missing MANIFEST.in file which is required to include non-Python files in the source distribution (.tar.gz file). We also made the xpdConf/tests directory a library to make it part of the source and binary distribution.

Before the fix:

xpdconf-0.4.2
├── PKG-INFO
├── README.md
├── setup.cfg
├── setup.py
├── xpdconf
│   ├── __init__.py
│   └── conf.py
└── xpdconf.egg-info
    ├── PKG-INFO
    ├── SOURCES.txt
    ├── dependency_links.txt
    ├── not-zip-safe
    └── top_level.txt

After the fix:

xpdconf-0.4.2
├── AUTHORS.txt
├── CHANGELOG.rst
├── LICENSE
├── MANIFEST.in
├── PKG-INFO
├── README.md
├── setup.cfg
├── setup.py
├── xpdConf
│   ├── __init__.py
│   ├── conf.py
│   ├── examples
│   │   ├── pdf.yaml
│   │   ├── sim.yaml
│   │   ├── sim_db.yaml
│   │   └── xpd.yaml
│   └── tests
│       ├── __init__.py
│       ├── test_base_dir.py
│       ├── test_conf.py
│       └── test_loadyaml.py
└── xpdconf.egg-info
    ├── PKG-INFO
    ├── SOURCES.txt
    ├── dependency_links.txt
    ├── not-zip-safe
    └── top_level.txt

[mrakitin]

We package it with conda from https://github.com/nsls-ii-forge/xpdconf-feedstock/blob/9ebbb818124aa8f817d2fda8408261783e7ac6f0/recipe/meta.yaml#L9, and that uploaded artifact is missing the examples .yaml files.

[mrakitin]

@st3107, will you be able to review/merge it and cut a new release after the fix? We would like to have our nsls2forge package ready for the next deployment.

[st3107]

Thank you for the fix.

[mrakitin]

@AbbyGi, we overlooked the case-sensitivity of the directory in MANIFEST.in, I got a fix in #17.