Use tokens from suomifi-design-tokens

• Use tokens from suomifi-design-tokens
  https://github.com/vrk-kpa/suomifi-ui-components/milestone/1

Bugfixs:

• Change breadcrumb link "Aria-current" value from "page" to "location" #175
• Set button fullWidth using className #176
• Added the missing background-color for the Dropdown #178
• Use disabled-attribute for PanelExpansion #199
• Button.tertiary colors to match design #218
• Fix PanelExpansionGroup open/close all button for IE and Edge #191
• Mouse cursor for disabled Button #228

Breaking changes:

• suomifiTheme not exported anymore 195
• Differentiating input and button versions of Toggle #136
• Only allow placeholder for SearchInput #185