NEW VARIABLES. Adds front-end support for each stream. Adds CiviCRM logo for front-end pages as inline SVG. Adds CSS Variables for front end with --crm-f prefix, including to choose between inline and stacked label/inputs, to create a focus background, to limit the form width and adjust the logo size.Some fixes. NB v0.8 will be the last major version of RiverLea to work on CiviCRM < 5.75, due to file structure changes enabled by that release. Small fixes can be added as v0.8.1, v0.8.2, etc.