Include more information in `event.contexts` for Node.js

[timfish]

Problem Statement

The event contexts.device payload has many properties that are easily accessible from the os module.

Since bundle size is less of a concern in Node, we should probably be including these as a default included integration.

Solution Brainstorm

Many of these are already added to the Electron SDK so they can be moved to Node.js and removed from Electron!

device

• boot_time
• arch
• memory_size
• free_memory
• processor_count - I initially opened a separate issue for this since it can also be added to the browser.
• cpu_description
• processor_frequency

os

• version
• build
• kernel_version

app

• app_start_time
• memory_used (Add app_memory to app context develop#658)

culture

• locale
• timezone