Multiple Asset note_table Sections

### Features

- **Expanded to 10 independent Sections**: Each Section has a title, content, and associated asset
- **Asset-based filtering**: Section only displays when the Section's asset name is empty or matches the current chart asset
- **Empty asset setting retained**: If Section asset name is left blank, that Section will display across all assets
- **Automatic display of current asset**: Current asset name is automatically shown in the header and footer

### Usage Instructions

1. Each Section can be assigned a specific asset name, such as "BTCUSDT", "ETHUSDT", etc.
2. A Section will only display when the current chart asset matches the asset specified for that Section
3. If you want a Section to display across all assets, simply leave the asset name blank for that Section
4. Each Section has independent title and content that can be customized as needed
5. When switching to different trading instruments, the indicator automatically displays notes relevant to the current instrument