* base conditional requiremet on oed source type

* CR level 1 don't create requirements

Fix #147

updated major and minor descriptions

a couple more small updates to the read me

* added paragraph on optional versus CR filter fields

* Update Changelog.rst

Issues added for OED v3.1 anything I've missed @johcarter ?

* Add files via upload

Updates made for v3.1 highlighted in yellow.

* Delete OpenExposureData/Docs/Open_Exposure_Data_v2.1.0.pdf

Removed pdf doc as it was out of date and all chapters are being maintained as .rst anyway.

* Add files via upload

* Delete OpenExposureData/Docs/OED_v3.1_fallback codes.xlsx

* Delete OpenExposureData/Docs/OpenExposureData_Spec_v3.1.xlsx

* Add files via upload

updates made to the 'versioning' tab

* Delete OpenExposureData/Docs/OpenExposureData_Spec_v3.1.xlsx

* Add files via upload

* Add files via upload

* Update README.md

Updates to Readme for versioning and back compatibility

* Split policy conditions documentation into a new section (#169)

* added policy conditions documentation

* moved conditions into new section

* example fixes

* example 10 and 11

* example 10 fix

* clarifications

* update following MD review

* added loss examples

* corrections and more loss examples

* few corrections

* spacing

* edits following AK review

* more corrections

* reviewed excel spec and replaced previous version with 3.1 version

* revert implentation of issue 162 (breaking) and added a few issues to changelog

* Delete OpenExposureData/Docs/OpenExposureData_Spec.xlsx

removing file as made small changes to data brackets

* Create Spec

* Add files via upload

Adding updated spec of v3.1

* Delete OpenExposureData/Docs/Spec

removing blank file

* Add files via upload

* Add files via upload

changes to NumberofStoreys data range

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Co-authored-by: Joh Carter <[email protected]>
Co-authored-by: MattDonovan <[email protected]>

* Added versioning sheet

* added versioning sheets

* versioning info grouped by version

* removed the unused 'Other' category

* if no versioning info, create empty dict

* example schema for adding versioning information

* Fix CI testing

* added codes to revert to OED v2.2 and v2.0

* Removed test schema

* fallback 1256 and 1305 -> 1104 & 5503 -> 5501

* 5309, 5310 -> 5100

* new codes (agriculture)

* Fix CD release

* Disable guard

* Revert "Disable guard"

This reverts commit 0b14734.

* Replaced spec xlsx file

* Corrected field "number of storeys"

* Add files via upload

---------

Co-authored-by: Sam Gamble <[email protected]>