Look into JSDoc build performance

[RandomByte]

Expected Behavior

A JSDoc build with the UI5 Tooling should be as fast or faster to complete than when using the OpenUI5 grunt docs build

Current Behavior

❯ hyperfine --warmup 1 'grunt docs --force'
Benchmark SAP/ui5-builder#1: grunt docs --force
  Time (mean ± σ):     53.871 s ±  2.201 s    [User: 75.092 s, System: 5.580 s]
  Range (min … max):   51.555 s … 58.946 s    10 runs

❯ hyperfine --warmup 1 'npm run build-sdk' 
Benchmark SAP/ui5-builder#1: npm run build-sdk
  Time (mean ± σ):     111.163 s ±  2.921 s    [User: 158.006 s, System: 33.348 s]
  Range (min … max):   106.719 s … 115.586 s    10 runs

➡️ UI5 Tooling takes about 2x longer compared to grunt docs

Context

• UI5 Module Version (output of ui5 --version when using the CLI): 1.2.2
• Node.js Version: v11.8.0
• npm Version: 6.9.0
• OS/Platform: macOS 10.14.3

Affected components (if known)

• [X] ui5-builder
• [ ] ui5-server
• [X] ui5-cli
• [ ] ui5-fs
• [ ] ui5-project
• [ ] ui5-logger

Log Output / Stack Trace

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