File contact.patch of Package gnuhealth.16145

--- a/tryton/health_contact_tracing/view/gnuhealth_contact_tracing_form.xml
+++ b/tryton/health_contact_tracing/view/gnuhealth_contact_tracing_form.xml
@@ -17,6 +17,8 @@
     <newline/>
     <label name="exposure_risk"/>
     <field name="exposure_risk"/>
+    <label name="exposure_time"/>
+    <field name="exposure_time"/>
     <label name="context"/>
     <field name="context"/>
     <newline/>