Add missing documentation

[LeXXik]

Add missing documentation for the components:

• [x] Body Component - done: #15
• [x] Char Component - done: #17
• [x] Constraint Component - done: #24
• [x] SoftBody Component - done: #15
• [x] Vehicle Component Vehicle Constraints - done: #66
• [x] Shape Component - done: #15
• [x] Manager methods, e.g. raycasts, etc. - done: #68
• [x] Initialization Settings - done: #68
• [ ] Landing README.md
• [x] Create a separate repo for doc deployments

Vehicle Component was transformed into Vehicle Constraint. This is how it is implemented in Jolt and brings it in line with other constraints via Constraint Component.