Bump version: 0.1.0 → 0.1.1

[kratsg]

Description

Version bump for release preparation.

Checklist Before Requesting Reviewer

• Tests are passing
• "WIP" removed from the title of the pull request
• Selected an Assignee for the PR to be responsible for the log summary

Before Merging

For the PR Assignees:

• Summarize commit messages into a comprehensive review of the PR

v0.1.1 brings the following new features
- CLI: pyhf inspect, configurable optimizer (and options), configurable test statistic
- docs: introduction, likelihood specification
- schema: semantic versioning, finalized v1.0.0
- hifi: compatibility mode via qtilde test statistic

The following user-facing bugs were fixed since v0.1.0:
- CLI was not running correctly without pyhf[xmlio]
- writexml divided out sample data incorrectly when sample data is zero

[matthewfeickert]

[matthewfeickert]

@kratsg Can you make a GitHub release as well after this gets merged to pickup Zenodo?

[kratsg]

Will merge now (push passed). Don't delete until the last check (PR) passes.