Overhauled project organization

...SwiftNLP/0. SNLP Internal Protocols/SLPAsyncEncoder.swift

...NLP Internal Protocols/SNLPCorpus + Text Processing.swift

Sources/SwiftNLP/0. SNLP Internal Protocols/SNLPCorpus.swift

...es/SwiftNLP/0. SNLP Internal Protocols/SNLPDataItem.swift

...ces/SwiftNLP/0. SNLP Internal Protocols/SNLPEncoder.swift

...ata Collection/CWorld.AI/Top 20k Subreddit Download.swift

...LP/1. Data Collection/DictionaryCorpus + Collection.swift

Sources/SwiftNLP/1. Data Collection/DictionaryCorpus.swift

... Data Collection/Pushshift Archives/RedditContainer.swift

...Collection/Pushshift Archives/loadFromRedditArchive.swift

Sources/SwiftNLP/2. Encoding/BoWCorpus.swift

Sources/SwiftNLP/2. Encoding/BoWDictionary.swift

.../SwiftNLP/2. Encoding/ContextFreeEncoder + File IO .swift

Sources/SwiftNLP/2. Encoding/ContextFreeEncoder.swift

Sources/SwiftNLP/2. Encoding/CoreMLEncoder.swift

Sources/SwiftNLP/2. Encoding/OpenAIEncoder.swift

Sources/SwiftNLP/2. Encoding/SIMDCorpus.swift

Sources/SwiftNLP/2. Encoding/TruncatedVectorCorpus.swift

...ftNLP/3. Topic Modelling/Clustering/SIMD + distance.swift

...P/3. Topic Modelling/Clustering/SIMD2 + KDTreePoint.swift