Add solana bpf tools#3

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macalinao wants to merge 6 commits intomasterfrom

igm/solana-bpf-sdk

Commits on May 25, 2021

Add solana bpf tools
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Commits on May 31, 2021

Commits on Mar 5, 2022

:Merge remote-tracking branch 'origin/master' into igm/solana-bpf-sdk
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Commits on Mar 8, 2022

wip
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