mips instructions needed for executing mini-starcoin-vm

[templexxx]

• lw
• sw
• addiu
• sll
• or
• addu
• beq
• jalr
• sltu
• bne
• xor
• srl
• lbu
• lwr
• lwl
• sb
• swr
• swl
• mfhi
• bgezal
• lui
• break
• mflo
• subu
• and
• andi
• sltiu
• multu
• jr
• lhu
• ori
• movz
• mtlo
• mthi
• sh
• movn
• nor
• bltz
• xori
• sync
• bgez
• clz
• sra
• sc
• ll
• lb
• sllv
• mul
• srlv
• slti
• slt
• maddu
• blez
• syscall
• lh
• divu
• mult
• teq
• bgtz
• srav
• div

how to get the result:

1. using this profile.release in Cargo.toml:

[profile.release]
strip=true
lto=true
panic = "abort"

2. release the min-starcoin-vm with changes in this commit
3. using objdump inside this toolchain to disassembler executable sections:

mips-linux-musl-objdump -d mini-starcoin-vm > exec.obj

4. using this mips disassembler tool to get instructions:

cat exec.obj | awk '{print $1, $2}' | mipsdis - > exec.dis

5. get pure instructions: cat exec.dis | awk '{print $3}' > ins
6. combine instructions and sort them: perl -0777 -lape's/\s+/\n/g' ins | sort | uniq -c | sort -nr > ins_sort
7. cat ins_sort | awk '{print $2}' > used_ins
8. remove meaningless illegal

Close #13