Add ORG-backed hourly wage and union inputs

changelog.d/codex-org-inputs.added.md

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+Add ORG-backed `hourly_wage` and `is_union_member_or_covered` input variables.

policyengine_us/tests/core/test_org_input_variables.py

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+from policyengine_us import CountryTaxBenefitSystem
+
+
+def test_org_input_variables_exist():
+    system = CountryTaxBenefitSystem()
+
+    assert "hourly_wage" in system.variables
+    assert "is_union_member_or_covered" in system.variables
+
+
+def test_org_input_variable_types():
+    system = CountryTaxBenefitSystem()
+
+    assert system.variables["hourly_wage"].value_type is float
+    assert system.variables["is_union_member_or_covered"].value_type is bool

policyengine_us/variables/household/income/person/hourly_wage.py

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+from policyengine_us.model_api import *
+
+
+class hourly_wage(Variable):
+    value_type = float
+    entity = Person
+    label = "hourly wage"
+    documentation = "Reported hourly wage, imputed from CPS ORG donors."
+    unit = USD
+    definition_period = YEAR

policyengine_us/variables/household/income/person/is_union_member_or_covered.py

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+from policyengine_us.model_api import *
+
+
+class is_union_member_or_covered(Variable):
+    value_type = bool
+    entity = Person
+    label = "is union member or covered by a union contract"
+    definition_period = YEAR