[FEATURE] Add the Tooltip & Popover components

[albx]

Create reusable Razor components for tooltips and popovers, following Bootstrap Italia - Tooltip and Popover. Support all placement, triggers, and accessibility features.

Requirements:

• Implement Razor components (e.g., BitTooltip.razor, BitPopover.razor) that encapsulate the respective Bootstrap Italia styles.
• Support for all documented placements, triggers, and content.
• Expose parameters for ARIA/accessibility attributes.
• Add XML documentation for all public parameters.

Acceptance Criteria:

• The components render valid Bootstrap Italia markup for tooltips and popovers.
• All documented placements and features are supported via parameters.
• Components are unit tested for major use cases and variants.
• Usage examples are provided in the documentation or a sample page.

References:

• Bootstrap Italia - Tooltip Documentation
• Bootstrap Italia - Popover Documentation