Merge branch 'backend' into api

Changelog.md

README.md

app/src/main/java/rars/Globals.java

app/src/main/java/rars/assembler/Tokenizer.java

...ava/rars/riscv/instructionSets/InstructionInitialSet.java

app/src/main/java/rars/riscv/instructions/AND.java

app/src/main/java/rars/riscv/instructions/ANDI.java

app/src/main/java/rars/riscv/instructions/NOT.java

app/src/main/java/rars/riscv/instructions/OR.java

app/src/main/java/rars/riscv/instructions/ORI.java

app/src/main/java/rars/riscv/instructions/SB.java

app/src/main/java/rars/riscv/instructions/XOR.java

app/src/main/java/rars/riscv/instructions/XORI.java

app/src/test/java/rars/assembler/TokenizerTest.java

app/src/test/java/rars/riscv/instructions/ANDITest.java

app/src/test/java/rars/riscv/instructions/ANDTest.java

app/src/test/java/rars/riscv/instructions/NOTTest.java

app/src/test/java/rars/riscv/instructions/ORITest.java

app/src/test/java/rars/riscv/instructions/ORTest.java

app/src/test/java/rars/riscv/instructions/XORITest.java