Include contract source and typescript source in export

[oveddan]

Added the improvements from 1155's pr: ourzora/zora-protocol#108

• contract source code, addresses json, and config json are now bundled with the package, in the folder /src and /addresses and /chainConfigs correspondingly.
• You can now go to directly the typescript source file when going to definition instead of the type declaration file.. This is achieved by running the post build step tsc --emitDeclarationOnly --declaration --declarationMap, documented here
• tsup config moved to tsup.config.ts

Additionally, moved the "output" folder for foundry back to "out" - not the dist folder. If we seed the need to include that in the export we can.

[oveddan]

this allows the source code files to have "go to definition" on package impor

[iainnash]

looks good, thanks :)