Contract name is not necessarily the same as the file name

[yann300]

This leads to an exception while running
https://github.com/EdsonAlcala/remix-gas-profiler/blob/master/src/index.ts#L49
if the contract name is not the same as the file name.
Also .replace(browser/,...) can't be used as the file is not necessarily in the browser explorer.

As a workaround for the moment, I would just loop over all the (compilationResult as any).data.contracts and render

const gasPerLineCost = await this.profiler.getGasPerLineCost(
          sourceMap,
          bytecode,
          originalSourceCode,
          traces,
        )

at each iteration.
Then we can put this result in the editor when we have the API available