commons-asset

• upgraded spring-boot 2.1.4 + commons-rest 1.4.2
• little fixes

• added spring-autoconfiguration + conditional beans
• no component-scan should be needed anymore

• introduced AssetId in order to automatically convert between AssetId and AssetRead via AssetIdLoader
• separated AssetConverter and AssetPreviewService in order to allow custom implementations
• fixed colorPalette within assetReference
• upgraded depth-versions
• changed to Optional within AssetService and AssetRepository

intergrated color-thief in order to get primary and other colors from photo

• refactored assetBatchService to work also without ServletContext

• separated assetBatch processing as service for internal use
• fallback in case of downloader when filetype couldn't extracted by filename

• upgraded commons-rest 1.3.0
• refactored resource

stable release without milestone version etc.

• extended AssetConverter to optional use of RequestContextHolder

• added working version to toggle rest-endpoints (delete, preview, batch)
• added queryAsset possibility for findAll

• added assetTypes: xls, xlsx, doc, docx
• added possibility to configure list of allowed assetTypes "asset.allowed-types"

• added batch processing

• extracted service from controller
• added toReference method to dto + entity

working version with previews generation and s3 connector

first draft and release try