v3.1.0

What's Changed

• Functional form by @jmafoster1 in #163
• Add standard issue templates by @bobturneruk in #165
• Metamorphic relation and test generation from a DAG by @AndrewC19 in #109
• Robustness Estimators by @rsomers1998 in #113
• Confidence intervals through inheritence by @jmafoster1 in #169
• Implemented rest of Z3 operators. Closes 147. by @jmafoster1 in #168
• Update readme and docs by @cwild-UoS in #134
• Examples now runnable with pytest. Closes #5. Closes #136. by @jmafoster1 in #164

Full Changelog: v3.0.0...v3.1.0