Filter packages based on whether they were installed intentionally

[buresdv]

Requested here: https://indieweb.social/@infotexture/110077275431348917

Possible implementation:

• Each package has a file called INSTALL_RECEIPT.json inside its folder. This file includes a short JSON description of the package (This basically means we can get info about the package without pulling it from brew info, a possible way to speed up loading of the package details screen, the same system as Speed up loading of package details #69)
• As a deferred async operation, read the value of the key installed_on_request anda ssign it to each package in the tracker
• Add a search tag that will let the user filter out only the packages that have installed_on_request set to true

Points:

1. Assume every cask has been intentionally installed

[buresdv]

Implemented