[IMP] product: remove UoM constraint from product module and give it in stock and account module

Closes #2440
[IMP] Website name instead of company name in title and logo
[IMP] mrp: hide some fields on BOM, add groups to handle the displayed fields
[FIX] website: fallback on company name for non-website templates
[FIX] Use website's `domain` field for multi-website

This commit is related to d51157154e478d1fafdd5b7861346535baeed6d2
[IMP] [MOV] account_analytic_analysis, hr_timesheet
- move the service product from product to hr_timesheet
- move default time unit for services from sale to account_analytic_analysis
to ease the configuration
[ADD] website: new table format snippet

(cherry-picked from 383ab454725d9bf8d01392a587c8a2c0c2116294)
(Closes #2429)
[FIX] Update README for master
[IMP]hr_recruitment:change stages of job positions as per department wise to job wise.

[IMP]improved code