fix error cannot find module.

[binsarjr]

fix #885

Description

fix eror cannot find module. that error because when bran.js set gpu.js as peer dependecies. its not installed in our path. but,in user

Motivation and Context

issue

How Has This Been Tested?

i only change external rollup setting

• [x] test for nodejs script
• [x] test for browser

Screenshots (if appropriate):

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)

Author's Checklist:

• [x] My code focuses on the main motivation and avoids scope creep.

Reviewer's Checklist:

• [x] I kept my comments to the author positive, specific, and productive.
• [x] I tested the code and didn't find any new problems.
• [ ] I think the motivation is good for the project.
• [ ] I think the code works to satisfies the motivation.

[robertleeplummerjr]

The introduction of loading GPU.js that way was so that the browser version worked correctly. Does simply removing it fix everything?

[binsarjr]

The introduction of loading GPU.js that way was so that the browser version worked correctly. Does simply removing it fix everything?

for nodejs library yes. the problem is gpu.js as a peerDepedency. so, when user downlaoded gpu.js, it will create for user node_modules path not our pacakge. it make wrong path when we use require('brain.js')

but for browser rollup it will be needed.