Reorganize projects made old scheme

Some of existing projects are created without organizational discussions, and are not used much now.
On migration at 2016/06, we deleted all ICS projects, and made this instance to track DRP,ETS,SPT packages which has closer relationships than to ICS, and are assumed to be developed in a similar development management and strategy. Although some definitions or management are used for each group, most of organizational documentations could be shared among three software packages. Therefore, we could be fine with one JIRA project for management or infrastructural discussions.

I'd propose:

• merge CDS and IPMU project into INFRA for general project management
• rename INFRA as "Development Infrastructure" from current "DRP software Infrastructure"
• rename "SCAM" as "INSTRM" to track all ICS tickets
• add "SURVEY" for all survey planning/tracking tickets

• Add(ed) "FIBERALLOC" for ETS (fiber allocation) tickets

PR on documentation is at https://github.com/Subaru-PFS/doc/pull/4