[Snyk] Security upgrade solc from 0.4.26 to 0.5.0

[enterstudio]

Snyk has created this PR to fix 1 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• package.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Malicious Package SNYK-JS-ERROREX-12554213	965

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