[UserStory] Rename overall package to better identify the organization

[jody]

User Story

Essential components

• [x] Title describes the story
• [x] Stakeholder type is identified
• [x] Outcome is described
• [x] Rationale is explicit
• [x] Acceptance criteria are verifiable and from the perspective of the stakeholder

Story

As a maintainer
I want the encompassing package name to identify the organization
so that it has an obvious meaning as is consistent with typical Java packages

Acceptance Criteria

• The top-level package is no longer named "swdmt"
• The top-level package has a name that identifies the organization (e.g., "metrocs")

Supporting Information

This may be accomplished by a simple git mv command.

[jody]

Tasks include:

• rename folder from src/swdmt to src/metrocs
• edit package statements in source code files
• edit package statement in example documentation
• recreate API documentation using modified source code