Inte-edc

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- fix baseline determination for drug refill `rx_modified` form
validation (inte-subject)
- fix HE form to allow `0` as payment amount (inte-subject)
- add fields to Clinical Review model; health_insurance,
patient_club (inte-subject)
- add medication adherence CRFs (inte-subject)
- enforce window period. Extend 6m upper to 1 month before 12m

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- add result forms to PRN list (VL, CD4, glucose)
- enforce order of CRF submission where necessary
- modify review followup forms (hiv, htn, dm); add care delivery
questions linked to randomization and icc registration, remove
test date and dx questions, check for art init date if not
started at diagnosis.
- add missing other specify fields to HE form
- add diagnoses class to validate any Q's/CRFs related to a
diagnosis or diagnosis date
- expand forms validation and tests
- add management command to refresh INTE metadata

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- refactor field and variable naming using these prefixes: htn-> hypertension, dm->diabetes, hiv->hiv
- change visit schedule to three study timepoints (0,6,12) only
- interim / routine / unwell visits can be entered as 'unscheduled' as per the EDC
- define CRF set for all interim visits
- remove reason_for_visit. merge reason_for_visit fields health_services, clinic_services into subject_visit and
refill questions into new 'medications' CRF
- change baseline_care_status and investigations to clinical_review_baseline and clinical_review, respectively
- add family history, require once at any visit after baseline (form 8)
- add new version of health economics, require once at any visit after baseline (TODO: link to ICC reg form)
- rename fields and variables diabetic_xxx, hypertensive_xxx to diabetes_xxx and hypertension_xxx for consistency
- add ICC registration form
- fix daily log options for method of recruitment to align with screening form
- add extra option to subject_visit.info_sources, patient and care card
- make weight and height optional after baseline on the indicators CRF
- fix issues with metadata_rules, expand
- on former investigations CRF, now clinical review, ask for test dates per condition
- change wording on post-baseline clinical review questions to ask for a new DX as of today
- for testing and dx, ask for either duration 'ago' or exact date
- greatly improve test coverage

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- change prompt on ``baslinecarestatus`` to clarify that ``hiv_clinic_other_is_study_clinic``
refers to ``hiv_clinic_other``.
- bump up edc==0.1.18

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- bump up edc==0.1.17

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- bug fixes, bump up edc==0.1.14