Added
- repository and necessary files [INCORE1-1279](https://opensource.ncsa.illinois.edu/jira/browse/INCORE1-1279)
- documentations for pyincore-data [INCORE1-1281](https://opensource.ncsa.illinois.edu/jira/browse/INCORE1-1281)
- census data acquisition for household dislocation [INCORE1-1273](https://opensource.ncsa.illinois.edu/jira/browse/INCORE1-1273)