Export Safari reading list to CSV or JSON

Sample results

The plistlib module:

pip install plistlib

Tested on mac 11.4 Big Sur, Safari 14.1.1.

Basic usage:

Export to CSV:
```
python export_reading_list.py csv reading_list.csv
```
will write the reading list to reading_list.csv.
Export to JSON:
```
python export_reading_list.py json reading_list.json
```
will write the reading list to reading_list.json.

Options:

Also copy the reading list icons:
```
python export_reading_list.py csv reading_list.csv --dir-icons-out reading_list_icons
```
copies the icons to the folder reading_list_icons. They match up to the entries through the WebBookmarkUUID key.

Specify the source directory for the icons:

python export_reading_list.py csv reading_list.csv --dir-icons ~/Library/Safari/ReadingListArchives

The default is ~/Library/Safari/ReadingListArchives.

Specify the source directory for the reading list .plist file:
```
python export_reading_list.py csv reading_list.csv --fname-bookmarks ~/Library/Safari/Bookmarks.plist
```
The default is ~/Library/Safari/Bookmarks.plist.
Include cached data for the websites:
```
python export_reading_list.py csv reading_list.csv --include-data
```
The data is written to the Data field. The default is the --exclude-data option, which excludes the data.

To generate the website from the website_template folder, run:

python website.py reading_list.json reading_list_icons

The output is in the website_out folder.