Fix JBIG2 decoding issue #5026
Merge pull request #5110 from fkaelberer/issue5026

Fix JBIG2 decoding issue #5026
Add strict equalities in src/core/annotation.js
Add strict equalities in src/core/arithmetic_decoder.js
Add strict equalities in src/core/bidi.js
Add strict equalities in src/core/colorspace.js
Add strict equalities in src/core/core.js
Add strict equalities in src/core/evaluator.js