feat(classroom): update the API

#### classroom:v1

The following keys were added:
- resources.courses.methods.getGradingPeriodSettings.description
- resources.courses.methods.getGradingPeriodSettings.flatPath
- resources.courses.methods.getGradingPeriodSettings.httpMethod
- resources.courses.methods.getGradingPeriodSettings.id
- resources.courses.methods.getGradingPeriodSettings.parameterOrder
- resources.courses.methods.getGradingPeriodSettings.parameters.courseId.description
- resources.courses.methods.getGradingPeriodSettings.parameters.courseId.location
- resources.courses.methods.getGradingPeriodSettings.parameters.courseId.required
- resources.courses.methods.getGradingPeriodSettings.parameters.courseId.type
- resources.courses.methods.getGradingPeriodSettings.path
- resources.courses.methods.getGradingPeriodSettings.response.$ref
- resources.courses.methods.getGradingPeriodSettings.scopes
- resources.courses.methods.updateGradingPeriodSettings.description
- resources.courses.methods.updateGradingPeriodSettings.flatPath
- resources.courses.methods.updateGradingPeriodSettings.httpMethod
- resources.courses.methods.updateGradingPeriodSettings.id
- resources.courses.methods.updateGradingPeriodSettings.parameterOrder
- resources.courses.methods.updateGradingPeriodSettings.parameters.courseId.description
- resources.courses.methods.updateGradingPeriodSettings.parameters.courseId.location
- resources.courses.methods.updateGradingPeriodSettings.parameters.courseId.required
- resources.courses.methods.updateGradingPeriodSettings.parameters.courseId.type
- resources.courses.methods.updateGradingPeriodSettings.parameters.updateMask.description
- resources.courses.methods.updateGradingPeriodSettings.parameters.updateMask.format
- resources.courses.methods.updateGradingPeriodSettings.parameters.updateMask.location
- resources.courses.methods.updateGradingPeriodSettings.parameters.updateMask.type
- resources.courses.methods.updateGradingPeriodSettings.path
- resources.courses.methods.updateGradingPeriodSettings.request.$ref
- resources.courses.methods.updateGradingPeriodSettings.response.$ref
- resources.courses.methods.updateGradingPeriodSettings.scopes
- schemas.CourseWork.properties.gradingPeriodId.description
- schemas.CourseWork.properties.gradingPeriodId.type
- schemas.GradingPeriod.description
- schemas.GradingPeriod.id
- schemas.GradingPeriod.properties.endDate.$ref
- schemas.GradingPeriod.properties.endDate.description
- schemas.GradingPeriod.properties.id.description
- schemas.GradingPeriod.properties.id.readOnly
- schemas.GradingPeriod.properties.id.type
- schemas.GradingPeriod.properties.startDate.$ref
- schemas.GradingPeriod.properties.startDate.description
- schemas.GradingPeriod.properties.title.description
- schemas.GradingPeriod.properties.title.type
- schemas.GradingPeriod.type
- schemas.GradingPeriodSettings.description
- schemas.GradingPeriodSettings.id
- schemas.GradingPeriodSettings.properties.applyToExistingCoursework.description
- schemas.GradingPeriodSettings.properties.applyToExistingCoursework.type
- schemas.GradingPeriodSettings.properties.gradingPeriods.description
- schemas.GradingPeriodSettings.properties.gradingPeriods.items.$ref
- schemas.GradingPeriodSettings.properties.gradingPeriods.type
- schemas.GradingPeriodSettings.type

The following keys were changed:
- documentationLink
- resources.courses.resources.announcements.methods.getAddOnContext.description
- resources.courses.resources.announcements.methods.getAddOnContext.parameters.attachmentId.description
- resources.courses.resources.courseWork.methods.getAddOnContext.description
- resources.courses.resources.courseWork.methods.getAddOnContext.parameters.attachmentId.description
- resources.courses.resources.courseWork.methods.patch.parameters.updateMask.description
- resources.courses.resources.courseWork.methods.updateRubric.description
- resources.courses.resources.courseWork.resources.rubrics.methods.create.description
- resources.courses.resources.courseWork.resources.rubrics.methods.delete.description
- resources.courses.resources.courseWork.resources.rubrics.methods.patch.description
- resources.courses.resources.courseWorkMaterials.methods.getAddOnContext.description
- resources.courses.resources.courseWorkMaterials.methods.getAddOnContext.parameters.attachmentId.description
- resources.courses.resources.posts.methods.getAddOnContext.description
- resources.courses.resources.posts.methods.getAddOnContext.parameters.attachmentId.description
- resources.courses.resources.students.methods.create.description
- resources.courses.resources.teachers.methods.create.description
- schemas.Material.properties.form.description

Author: yoshi-automation