- takes query of elegible volunteers and then builds SemesterProcessVolunteer for each
- if array of volunteer ids is passed, it will only build SemesterProcessVolunteer for these

- if passed from form input, it can build the correct semester that was passed from form input

- so that it can be treated as a child of this in forms
-

- relations to all hours with meeting date within the semester
- scaffold empty semesterFeedback record for each mission related
- build the SemesterProcessMail.kind == :mail for the initial mail

feat(semester-process-volunteer): builder that assigns the elegible missions from the volunteer to the SemesterProcessVolunteerMission join table relation

add attr-acessor for selected, in order to be able to filter form selected volunteers on select in form

fix(volunteer-semester-process-elegible): fix have_semester_process with doing subselect, because it didnt work otherwise

feat(semester-process-elegible-volunteer): add method semester_process_eligible that joins and groups the relevant scopes for semester process volunteers

feat(semester-process-elegible-volunteer): add scope that selects volunteers that where with active assignments or group assignments within the given semester

feat(semester-process-elegible-volunteer): add scope that gets volunteers wit a assignment or group assignment that has started, ever

feat(semester-process-elegible-volunteer): add scope that returns volunteers that dont have a semester process for given semester

feat(semester_process): add the duplication of the mission relation logic and validation into a concern

- call it mission

- they where useing date_between instead of date_between_inclusion

^

tidy volunteers complicated with_billable_hours_scope up and add a test for not including billed again hours

use advanced instead of duration, as it is more timezone safe

fix and make tests with Time more explicit and timezone safe

fix format helper test

fix format helper test

remove tz_parse helper