Support for private forecasts

...c/controller/servlet/ForecastConfigurationController.java

.../no/nibio/vips/logic/controller/session/ForecastBean.java

...ava/no/nibio/vips/logic/entity/ForecastConfiguration.java

src/main/java/no/nibio/vips/logic/service/LogicService.java

...ources/no/nibio/vips/logic/i18n/vipslogictexts.properties

...ces/no/nibio/vips/logic/i18n/vipslogictexts_bs.properties

...ces/no/nibio/vips/logic/i18n/vipslogictexts_hr.properties

...ces/no/nibio/vips/logic/i18n/vipslogictexts_nb.properties

...ces/no/nibio/vips/logic/i18n/vipslogictexts_sr.properties

...ain/webapp/formdefinitions/forecastConfigurationForm.json

src/main/webapp/templates/forecastConfigurationForm.ftl

src/main/webapp/templates/forecastConfigurationList.ftl