Remove src/lib/lodash in favor of lodash-es package. Update lodash to version 4.17.10

[ma2ciek]

Suggested merge commit message (convention)

Other: Removed lodash library from this package. Closes ckeditor/ckeditor5#5005.

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Additional information

BREAKING CHANGE: Old version of the lodash library under the src/lib/lodash is removed in favor of the latest version (4.17.10) of lodash-es.

[ma2ciek]

That PR requires following branches in other repositories:

• https://github.com/ckeditor/ckeditor5-engine/tree/t/ckeditor5-utils/251
• https://github.com/ckeditor/ckeditor5-core/tree/t/ckeditor5-utils/251
• https://github.com/ckeditor/ckeditor5-ui/tree/t/ckeditor5-utils/251
• https://github.com/ckeditor/ckeditor5-editor-balloon/tree/t/ckeditor5-utils/251
• https://github.com/ckeditor/ckeditor5-editor-classic/tree/t/ckeditor5-utils/251
• https://github.com/ckeditor/ckeditor5-editor-inline/tree/t/ckeditor5-utils/251
• https://github.com/ckeditor/ckeditor5-editor-decoupled/tree/t/ckeditor5-utils/251

[coveralls]

Coverage remained the same at 100.0% when pulling a7efdd7 on t/251 into 98508b0 on master.