VM0008: Weatherization of Single Family and Multi-Family Buildings, (v1.2)

### Problem description
This methodology covers weatherization of dwellings and implementation of energy efficiency measures in single-family homes, multi-family buildings, or mobile homes that reduce energy consumption. Examples include but are not limited to, improved air sealing, enhanced insulation, replacements of refrigerators and air conditioning units, and upgrades to heating/cooling systems, such as heat pumps (HP) and heat pump water heaters (HPWH).

### Requirements
1. Creating Schema Design and verifying it.
2. Development of the methodology including all the Tools and Modules required.
3. Testing using the real use case scenario
4. Documenting workflow and real use case.

### Definition of done
Successful design, development and publishing on Guardian Github repo.